Laxmi

Students who are interested in learning of 11th English Grammar Phrasal Verb Questions and Answers can use Tamilnadu State Board Solutions of 11th English Chapter Wise Pdf. First check in which chapter you are lagging and then Download Samacheer Kalvi 11th English Book Solutions Questions and Answers Summary, Activity, Notes Chapter Wise. Students can build self confidence by solving the solutions with the help of Tamilnadu State Board English Solutions. English is the scoring subject if you improve your grammar skills. Because most of the students will lose marks by Grammar grammar mistakes. So, we suggest you to Download Tamilnadu State Board 11th English Solutions according to the chapters.

Tamilnadu Samacheer Kalvi 11th English Grammar Phrasal Verb

Check out the topics covered in Grammar Phrasal Verb Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Phrasal Verb Questons and Answers. This helps to improve your communication skills.

Question 1.
Replace the underlined phrasal verb with a single word.
Yesterday evening I ran into my uncle in the bazaar.
(a) forgot
(b) remembered
(c) lost
(d) met
Answer:
(d) met

Question 2.
Replace the underlined word with the appropriate phrasal verb.
Don’t ever mock the condition of poor people.
(a) genius for
(b) look forward to
(c) look down upon
(d) look into
Answer:
(c) look down upon

Question 3.
Replace the underlined phrasal verb with a single word.
It is really difficult to put up with a short-tempered person.
(a) oppose
(b) accept
(c) deny
(d) tolerate
Answer:
(d) tolerate

Question 4.
Replace the underlined word with the appropriate phrasal verb.
After Nagaraj lost his job, he is in trouble.
(a) enjoying
(b) in deep waters
(c) draw a blank
(d) wild goose chase
Answer:
(b) in deep waters

Question 5.
Replace the underlined phrasal verb into a single word.
However hard she tried, she could not figure out the meaning of the proverb.
(a) appreciate
(b) condemn
(c) understand
(d) faint
Answer:
(c) understand

Question 6.
Replace the underlined word with the appropriate phrasal verb.
The blind faith of people on Godmen is worrisome.
(a) take exception to
(b) matter of great concern
(c) look through
(d) put up with
Answer:
(b) matter of great concern

Question 7.
Replace the underlined phrasal verb into a single word.
Monisha takes after her dad.
(a) follows
(b) receives
(c) resembles
(d) remembers
Answer:
(c) resembles

Question 8.
Replace the underlined word with the appropriate phrasal verb.
She is searching her lost scooter.
(a) looking after
(b) looking for
(c) looking up
(d) looking into
Answer:
(b) looking for

Question 9.
Replace the underlined phrasal verb into a single word.
I am counting on you for the completion of the project.
(a) arguing
(b) supporting
(c) depending
(d) motivating
Answer:
(c) depending

Question 10.
Replace the underlined word with the appropriate phrasal verb.
The ancestral jewelry has been handed down from generation to generation.
(a) stored
(b) delivered
(c) hidden
(d) distributed
Answer:
(b) delivered

The main aim is to share the knowledge and help the students of 11th English to secure the best score in their final exams. Use the concepts of Samacheer Kalvi 11th English Book Solutions Grammar Phrasal Verb Questions and Answers in Real time to enhance your skills. If you have any doubts you can post your comments in the comment section, We will clarify your doubts as soon as possible without any delay.

Students who are interested in learning of 11th English Grammar Foreign Words and Phrases Questions and Answers can use Tamilnadu State Board Solutions of 11th English Chapter Wise Pdf. First check in which chapter you are lagging and then Download Samacheer Kalvi 11th English Book Solutions Questions and Answers Summary, Activity, Notes Chapter Wise. Students can build self confidence by solving the solutions with the help of Tamilnadu State Board English Solutions. English is the scoring subject if you improve your grammar skills. Because most of the students will lose marks by Grammar grammar mistakes. So, we suggest you to Download Tamilnadu State Board 11th English Solutions according to the chapters.

Tamilnadu Samacheer Kalvi 11th English Grammar Foreign Words and Phrases

Check out the topics covered in Grammar Foreign Words and Phrases Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Foreign Words and Phrases Questons and Answers. This helps to improve your communication skills.

1. From French:

a. Avant-garde – This term applies to art, culture, and politics. It is when someone or something uses unusual or experimental ideas and challenges what people see as normal. For example, Lady GaGa is considered avant garde for her fashion choices.

b. Bon voyage – This term is generally used to express well wishes to someone who’is embarking • on a trip or journey. For example, “Have a safe trip and bon voyage ”

c. Deja vu – This is a popular phrase and at times is used incorrectly. Deja vu is the feeling that you have been through an experience or to a place before, though you never actually have. You are experiencing something for the first time, but in a way it feels familiar. “The castle gave me a sense of deja vu.”

d. Faux pas – A faux pas is an embarrassing social mistake. For example, wearing all white to a wedding at which you are not the bride. “She committed a faux pas at the wedding.”

e. RSVP – This is actually a French abbreviation for the phrase responder’s ’il Vous plait.” It literally translates as “please respond.” This is most often used on an invitation to an event.

f. Ballet – This is a form of dance that is popular all over the world. It’s important to note how the word “ballet’ is pronounced. Here you don’t pronounce the “t” at the end. Instead, the second syllable should sound like “lay,” with the same vowel sound as the letter “a”.

Example: My niece and nephew are in ballet class, so. I watched their five-hour ballet performance on Saturday. It was pretty long.

Here are a few other examples of French loanwords that end in “-et” but are pronounced like an “a” at the end: “buffet,” “gourmet,” “filet,” “chalet’ and even the car company “Chevrolet.”

g. Cafe – In English, this is the name for a small, usually informal restaurant. It often has small tables, and sometimes there are also tables outside. It- is written both with the accent mark (cafe) and without it (cafe) in English.

“Cafe” comes from the French word “coffee,” but it’s also very similar to other words related to coffee in many other languages. Usually, cafes do serve coffee, but if a place serves only coffee (and not any other food), then it’s normally called a “coffee shop.”

Also note that there’s a similar word, “cafeteria,” that causes some confusion. Generally, a cafeteria is like a small restaurant that is for a specific group of people. Cafeterias at schools or large companies are for the people who study or work there.

Example: I have only about 20 minutes for lunch, so I’ll just stop at a cafe for a quick lunch.

h. Croissant – Some of the most common loanwords are related to food. That’s because many foods are closely connected to a particular culture and other languages often don’t always have words for foods from other cultures.

A croissant is a type of pastry or bread that is light and flaky (leaves lots of little crumbs on your plate when you eat it). A similar type of bread in English is a “crescent roll.”

Example: Tina really loves to make croissants because they taste better than other types of bread.

1. Entrepreneur
This is definitely a word that you should hear pronounced, since it can be a little tricky even for native English speakers. An entrepreneur is a person who starts their own company. Other common forms of the word include “entrepreneurship” (a norm) or “entrepreneuriar (an adjective).

Example: Elon Musk, the man who started SpaceX and Tesla Motors, is one of the most famous entrepreneurs in the world.

2. From Latin
a. Alma mater – An alma mater is a school or university that one has attended or graduated from. For example, “Yale is my alma mater. ” It can also mean the school song and it literally translates as “loving mother.”

b. Quid pro quo – This term translates as “this for that.” It is used generally when two parties exchange something of value, e.g., “Criminals do not do something for nothing, there is always quid pro quo involved.”

c. Status quo – This phrase means “the existing state of affairs.” It describes what a culture or particular group deem “normal.” For example, “The government tried to maintain the status quo.’’’’

d. Genre – In French, this word means “kind” or “style.” In English, it‘s used to describe a category of something, especially when talking about entertainment. You’ll especially hear people using this word to talk about books, movies and music.

Example: Roy likes many types of music, but his favourite genre is heavy metal.

e. Rendezvous – In English, this word is used to describe either a place where people plan to meet, or the action of meeting a person at a specific time.
Example: We’re in a new city and I’m sure you all want to explore it a bit. It’s 2:00 now, so let’s rendezvous back here at 6:00. Then we’ll go for dinner.

3. From German
a. Kindergarten – Translated literally, this word means “children’s garden.” It’s a common type of school in many parts of the world. Children often go to a year or two of kindergarten when they’re five years old before they start elementary school.

Example:- Our daughter is going to turn five next year, so we’ve been trying to find a good kindergarten for her.

b. Waltz – A waltz is a type of formal dance. The word is also used to describe the type of music that plays during those dances and it can also be used as a verb to describe the action of performing this dance.

Example: My friends say that dancing the waltz is easy, but I can’t do it.

c. Rucksack – A rucksack is another name for a backpack. “Ruck” comes from the German word Riicken (back) and Sack means a bag.

Example: Alan is going to travel to Europe this summer, but he’s planning on taking one rucksack. He’ll have to pack carefully if he wants everything to fit!

d. Glitch – A glitch describes a small problem, but usually it’s a problem that doesn’t make it impossible to finish something.

Example: I planned to go downtown to meet with Betty, but I ran into & glitch: the bus wasn’t running because it was a holiday. So I just took a taxi instead.

e. Guerrilla – In Spanish, this word literally means “little war.” In both Spanish and English it can be used to describe an unofficial group of people fighting the government. In English, it’s most commonly used as an adjective, in phrases like “guerrilla warfare” or “guerrilla marketing.” Note that in Spanish, the “11” sound is different than in English. As a result, in English this word sounds basically the same as “gorilla,” the animal.

Example: The guerrilla fighters took control of the capital of the country, which gave them control of the government. .

f. Macho – This word describes a person who is very strong or masculine. It can also be used to describe a person who is arrogant about his manhood. It’s also used in the name of a professional wrestler and a popular disco song from the 1970’s.

Example: Peter is a real macho guy, but that’s annoying sometimes. He says that “real men don’t cry,” but I think he’s wrong.

g. Patio – In English, “patio” generally describes an area outside a house which often has a table and chairs, but no roof.

Example: It was very hot today, so we decided to go out to the patio to drink a cold glass of lemonade. There are some trees there, too, so the sun wasn’t as bad.

h. Plaza – A “plaza” describes a public open area in a city, which can sometimes be called a “square.” Plaza is also used in the names of many shopping malls, corporate building areas or other large open areas.

Example: Victoria needed to buy some Christmas presents for her friends, so she went downtown to the new shopping plaza to check out some of the stores,

i. Siesta – A “siesta” is a nap that one takes in the middle of the day, especially after eating or while taking a break from work.
Example: Wow, since I ate that big plate of spaghetti, now I’m feeling super tired. I think I’ll take a quick siesta before I get back to work.

4. From Japanese

a. Karaoke – It is a form of entertainment in which people take turns to sing popular songs into a microphone over pre-recorded backing tracks.

Example: David really likes singing karaoke, even though he doesn’t have an amazing voice. But that doesn’t matter—the important thing is to have fun with friends!

b. Karate – It describes a popular martial art that originated in Japan. There, the word “karate” means “empty hand,” since you don’t need any special equipment or weapons to do it.

Example: Lisa has a black belt in karate, so you’d better not try to steal her things.

c. Ninja – It means “spy” in Japanese, but in English it’s used to describe a person who can move and attack silently, without being seen. In modem use, people who can do something incredibly well are often called “ninjas.”

Example: You should try Karl’s cookies—they’re delicious! Karl is a real baking ninjal

d. Origami – Origami is the art of folding small pieces of paper into interesting shapes.

Example:
These days children are interested in learning origami. It’s good fun!

e. Tsunami – It is a gigantic (very large) sea wave that is usually caused by an earthquake. Unfortunately, the word has become more well-known ever since the 2004 south-east Asia tsunami and the 2011 Japan tsunami.

Example: The recent tsunamis in Asia killed hundreds of thousands of people.

5. From Chinese

a. Gung-ho – In Chinese this phrase means “work together,” but in English it’s used casually to express that you’re excited or enthusiastic about something. We generally use it as an adjective. Example: I was really gung-ho to eat dim sum, but when we got to the Chinese restaurant it was closed for a holiday! We were all really disappointed.

b. Kungfu – It is another popular style of martial arts. In “kung fu”, generally fighters only use their hands and feet, but not weapons.
Example: I’m tired of bullies beating me up. I’m going to learn kung fu so I can defend myself if they attack me again!

c. Tofu – This is a word that originally started in Chinese (as “dou fu”). But before it was adopted into English, it passed through Japanese and became “tofu.” In Chinese, “dou” means “bean” and “fu” means “rotten” or “sour.”

Example: This restaurant serves wonderful vegetarian dishes, especially tofu.

d. Typhoon – This word finds its origin in the Chinese word “taifeng,” which means “big wind.” A typhoon is just another name for a hurricane or a cyclone.

Example: In 2014 Typhoon Haiyan hit the Philippines and caused a lot of damage.

e. Yin and Yang – In Chinese, “yin” represents feminine, dark and night time, while “yang” represents the opposite: masculine, light and daytime things. In English, these words are used to represent any opposites.

Example: Mary is the yi/i to Peter’s .yang. They’re complete opposites, but they have a happy marriage. I guess it’s true that “opposites attract”!

6. Some Important Words from Other Languages

a. Moped (from Swedish) – “Moped” is a combination of the Swedish words “motor” and “pedaler.” Those words are nearly the same as their English equivalents “motor” and “pedals.” It’s basically a bicycle with a motor.

Example: On my last birthday, my father gifted me a moped.

b. Sheikh (from Arabic) – A “sheikh” is a ruler or leader of a group of people in Arab cultures. It’s used in English as a title for rulers in some countries, instead of words like “king” or “president.”

Example: When meeting sheikhs, many foreign leaders hold hands with them as a sign of respect or friendship.

c. Taekwondo (from Korean) – In Korean, “taekwondo” means “kick fist art” and in English it’s used to describe that popular martial art.

Example: I want to learn a martial art and I have chosen taekwondo.

The main aim is to share the knowledge and help the students of 11th English to secure the best score in their final exams. Use the concepts of Samacheer Kalvi 11th English Book Solutions Grammar Foreign Words and Phrases Questions and Answers in Real time to enhance your skills. If you have any doubts you can post your comments in the comment section, We will clarify your doubts as soon as possible without any delay.

Students who are interested in learning of 11th English Grammar Idioms Questions and Answers can use Tamilnadu State Board Solutions of 11th English Chapter Wise Pdf. First check in which chapter you are lagging and then Download Samacheer Kalvi 11th English Book Solutions Questions and Answers Summary, Activity, Notes Chapter Wise. Students can build self confidence by solving the solutions with the help of Tamilnadu State Board English Solutions. English is the scoring subject if you improve your grammar skills. Because most of the students will lose marks by Grammar grammar mistakes. So, we suggest you to Download Tamilnadu State Board 11th English Solutions according to the chapters.

Tamilnadu Samacheer Kalvi 11th English Grammar Idioms

Check out the topics covered in Grammar Idioms Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Idioms Questons and Answers. This helps to improve your communication skills.

Choose the suitable meaning of the idiom found in the following sentences:

Question 1.
His limited monthly income is a drop in the ocean.
(a) large
(b) plenty
(c) extreme
(d) meagre
Answers
(d) meagre

Question 2.
The post office is just a stone’s throw.
(a) far
(b) very near
(c) lazy
(d) brisk
Answers
(b) very near

Question 3.
Sugar is in short supply.
(a) inadequate
(b) adequate
(c) surplus
(d) superfluous
Answers
(a) inadequate

Question 4.
I wish someone could bring about a reconciliation among the warring factions of the same political party.
(a) cause to happen
(b) fetched
(c) supplied
(d) withdrew
Answers
(a) cause to happen

Question 5.
I want to achieve in all walks of life.
(a) have a change
(b) various areas of activity in life
(c) to disagree strongly
(d) perfectly healthy
Answers
(b) various areas of activity in life

Question 6.
Orders for the new product are coming in thick and fast.
(a) large numbers
(b) small volumes
(c) limited quantity
(d) appropriate level
Answers
(a) large numbers

Question 7.
Punjab Government had taken a very hard line against Ram Rahim, the Godman.
(a) a firm stand
(b) infirm stand
(c) ticklish
(d) fickle
Answers
(a) a fIrm stand

Question 8.
Don’t add insult to injury by insulting the boy who lost distinction by just two marks.
(a) brighten up
(b) worsen the situation
(c) lighten the situation
(d) mitigate the situation
Answers
(b) worsen the situation

Question 9.
All the workers rose against their employer.
(a) not involved in
(b) tolerated
(c) due to
(d) revolted
Answers
(d) revolted

Question 10.
A good salesman must be able to think on his feet to close the deal.
(a) adjust quickly to changes
(b) delete important material
(c) walk fast
(d) start a new adventure
Answers
(a) adjust quickly to changes

Question 11.
When the team was undergoing a major restructuring, recruitment executives were the first to get the axe.
(a) receive a gift
(b) find a place
(c) lose the job
(d) be seated
Answers
(c) lose the job

Question 12.
I go to visit my grandfather once in a blue moon; he lives in a remote farmhouse.
(a) once a year
(b) quite often
(c) every day
(d) very rarely
Answers
(d) very rarely

Question 13.
Taking care of a newborn is no bed of roses.
(a) easy option
(b) tough task
(c) long route
(d) bunch of flowers
Answers
(a) easy option

Question 14.
Every kid in the world is the apple of their parents’ eye(s).
(a) easy option
(b) tough task
(c) long route
(d) bunch of flowers
Answers
(a) someone very dear

Question 15.
His behaviour compelled me to give him a piece of my mind.
(a) scold him
(b) pardon him
(c) be a friend
(d) ignore him
Answers
(a) scold him

Question 16.
He gave an evocative rendering to his recent poems.
(a) thrilling
(b) enchanting
(c) emotional
(d) incantatory
Answers
(c) emotional

Question 17.
David’s promotion is on the cards.
(a) due
(b) evident
(c) certain
(d) probable
Answers
(c) certain

Question 18.
Professor Christopher asked the students to buckle down this semester.
(a) work seriously
(b) take it easy
(c) drop a subject
(d) take leave
Answers
(a) work seriously

Question 19.
Rita is not cut out for this kind of work.
(a) trained
(b) suitable
(c) recommended
(d) considered
Answers
(b) suitable

Question 20.
The director hesitated to assign the job to the newcomer as he was wet behind the ears.
(a) stupid and slow-witted
(b) young and inexperienced
(c) deaf
(d) lethargic
Answers
(b) young and inexperienced

The main aim is to share the knowledge and help the students of 11th English to secure the best score in their final exams. Use the concepts of Samacheer Kalvi 11th English Book Solutions Grammar Idioms Questions and Answers in Real time to enhance your skills. If you have any doubts you can post your comments in the comment section, We will clarify your doubts as soon as possible without any delay.

Students who are interested in learning of 11th English Grammar Abbreviations Questions and Answers can use Tamilnadu State Board Solutions of 11th English Chapter Wise Pdf. First check in which chapter you are lagging and then Download Samacheer Kalvi 11th English Book Solutions Questions and Answers Summary, Activity, Notes Chapter Wise. Students can build self confidence by solving the solutions with the help of Tamilnadu State Board English Solutions. English is the scoring subject if you improve your grammar skills. Because most of the students will lose marks by Grammar grammar mistakes. So, we suggest you to Download Tamilnadu State Board 11th English Solutions according to the chapters.

Tamilnadu Samacheer Kalvi 11th English Grammar Abbreviations

Check out the topics covered in Grammar Abbreviations Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Abbreviations Questons and Answers. This helps to improve your communication skills.

AAA	Amateur Athletic Association
AAFI	Amateur Athletic Federation of India
ACR	Annual Confidential Report
ADC	Aide-de-camp (Assistant)
AFI	Athletics Federation of India
AFMC	Armed Forces Medical College
AICTE	All India Council for Technical Education
AIFF	All India Football Federation
AITUC	All India Trade Union Congress
ANC	African National Congress
AOC	Air Officer Commanding
ASAP	As Soon As Possible
ASEAN	Association of South East Asian Nations
ASLV	Augmented Satellite Launch Vehicle
ATC	Air Traffic Control
ATM	Automated Teller Machine
ATR	Action Taken Report
ATS	Anti Tetenus Serum
AWACS	Airborne Warning and Control Systems
AMIE	Associate Member of the Institute of Engineers
AIR	All India Radio
AIDS	Acquired Immuno Deficiency Syndrome
AIIMS	All India Institute of Medical Sciences
BARC	Bhabha Atomic Research Centre
BBC	British Broadcasting Corporation
BHEL	Bharat Heavy Electricals Limited
BIOS	Basic Input Output System
BMA	British Medical Association
B.Ed.,	Bachelor of Education
BSNL	Bharat Sanchar Nigam Limited
BPCL	Bharat Petroleum Corporation Limited
CID	Criminal Investigation Department
CBI	Central Bureau of Investigation
CIA	Central Intelligence Agency
CAT	Common Aptitude Test
CAG	Comptroller and Auditor General of India
CDAC	Centre for the Development of Advanced Computing
CAD	Computer-Aided Design
CEO	(a) Chief Educational Officer (b ) Chief Executive Officer
CFC	Chlorofluorocarbon
CFL	Compact Fluorescent Lamps
CIS	Commonwealth of Independent States
CNN	Cable News Network
COD	Cash On Delivery
COPRA	Consumer Protection Act
CPI	Communist Party of India
CPWD	Central Public Works Department
CRY	Child Relief and You
CSIR	Council of Scientific and Industrial Research
CTBT	Comprehensive Test Ban Treaty
CVC	Central Vigilance Commission
CLRI	Central Leather Research Institute
CSO	Central Statistical Organisation
CPU	Central Processing Unit
CRPF	Central Reserve Police Force
CISF	Central Industrial Security Force
DIG	Deputy Inspector General
DNA	Deoxyribose Nucleic Acid
DPEP	District Primary Education Programme
DTH	Direct-to-Home
DTP	Desk Top Publishing
DVD	Digital Video Disc
EPABX	Electronic Private Automatic Branch Exchange
ELISA	Enzyme-Linked ImmunoSorbent Assay
EMI	Equated Monthly Installment
ESA	European Space Agency
ESMA	Essential Services Maintenance Act
FIFA	Federation International de Football Association
FRS	Fellow of the Royal Society
FAO	Food and Agricultural Organisation
FBI	Federal Bureau of Investigation
FDI	Foreign Direct Investment
FERA	Foreign Exchange Regulation Act
FIR	First Information Report
FRCS	Fellow of the Royal College of Surgeons
GPO	General Post Office
GMT	Greenwich Mean Time
GATE	Graduate Aptitude Test in Engineering
GPS	Global Positioning System
GRE	Graduate Record Examination
GSI	Geological Survey of India
GSLV	Geo-Synchronous Satellite Launch Vehicle
HIV	Human Immuno deficiency Virus
HTML	Hyper Text Mark-up Language
HTTP	Hyper Text Transfer Protocol
ICS	Indian Civil Service
IAS	Indian Administrative Service
IPS	Indian Police Sendee
IRS	Indian Revenue Sendee
IFS	Indian Forest Sendee
IN A.	Indian National Army
ICBM	Inter Continental Ballistic Missile
IMF	International Monetary Fund
1ST	Indian Standard Time
ISP	Internet Service Provider
ISRO	Indian Space Research Organisation
JRF	Junior Research Fellowship
ICMR	Indian Council of Medical Research
ICSE	Indian Certificate of Secondary Education
INSAT	Indian National Satellite
IAEA	International Atomic Energy Agency
IAAI	International Airport Authority of India
ICAR	Indian Council for Agricultural Research
ICT	Information and Communication Technology
IDBI	Industrial Development Bank of India
IPL	Indian Premier League
IELTS	International English Language Testing System
LBW	Leg Before Wicket
LCM	Lowest Common Multiple
LPG	Liquefied Petroleum Gas
MLA	Member of the Legislative Assembly
MLC	Member of the Legislative Council
MCA	Master of Computer Applications
MRTS	Mass Rapid Transit System
MTC	Metro Transport Corporation
NATO	North Atlantic Treaty Organization
NCO	Non-Commissioned Officer
NIFT	National Institute of Fashion Technology
NOC	No Objection Certificate
NGO	Non-Governmental Organisation
NCTE	National Council for Teacher Education
NBT	National Book Trust
NASA	National Aeronautics and Space Administration
NSE	National Stock Exchange
NCERT	National Council of Educational Research and Training
NLC	Neyveli Lignite Corporation
NPCIL	Nuclear Power Corporation of India Limited
NPT	Nuclear Non-Proliferation Treaty
NTSE	National Talent Search Examination
NTPC	National Thermal Power Corporation
OPAC	Online Public Access Catalogue
OPEC	Organisation of Petroleum Exporting Countries
ONGC	Oil and Natural Gas Corporation
ODI	One Day International / Open Datalink Interface
OIGS	On India Government Service
PERT	Project Evaluation and Review Technique
PRO	Public Relations Officer
PSU	Public Sector Units
PSLV	Polar Satellite Launch Vehicle
PAC	Public Accounts Committee
PAN	Permanent Account Number
PDA	Personal Digital Assistant
PETA	People for Ethical Treatment of Animals
PIL	Public Interest Litigation
PIN	Postal Index Number
POTA	Prevention of Terrorism Act
POW	Prisoner of War
PTO	Please Turn Over
PWD	Public Works Department
RTO	Regional Transport Officer
RTE	Right To Education
RTI	Right To Information
RAM	Random Access Memory
SPCA	Society for the Prevention of Cruelty to Animals
SSC	Staff Selection Commission
SBI	State Bank of India
SASE	Self Addressed Stamped Envelope
SAIL	Steel Authority of India Limited
SAM	Surface to Air Missile
SARS	Severe Acute Respiratory Syndrome
SEZ	Special Economic Zone
SMS	Short Message Service
START	Strategic Arms Reduction Treaty
SWOT	Strength, Weakness, Opportunity, and Threat
TT(E)I	Travelling Ticket Examiner/ Inspector
TTTI	Technical Teachers Training Institute
TESMA	Tamilnadu Essential Services Maintenance Act
TNEB	Tamil Nadu Electricity Board
TADA	Terrorist and Disruptive Activities
TAPS	Tarapur Atomic Power Station
TELCO	Tata Engineering and Locomotive Company
TISCO	Tata Iron and Steel Company
TLC	Total Literacy Campaign
TNPSC	Tamil Nadu Public Service Commission
TOEFL	Test of English as a Foreign Language
TQM	Total Quality Management
UDC	Upper Division Clerk
UFO	Unidentified Flying Objects
UGC	University Grants Commission (India)
ULFA	United Liberation Front of Asom/Assam
UNESCO	United Nations Educational, Scientific and Cultural Organisation
UNICEF	United Nations International Children’s Emergency Fund
UNO	United Nations Organisation
UPSC	Union Public Service Commission
VAO	Village Administrative Officer
VAT	Value Added Tax
VHF	Very High Frequency
VHS	Video Home System / Voluntary Health Services
VIP	Very Important Person
VPP	Value Payable Post
VSNL	Videsh Sanchar Nigam Limited
WTO	World Trade Organisation
WHO	World Health Organisation
WWW	World Wide Web
YMCA	Young Men’s Christian Association
YWCA	Young Women’s Christian Association
ZIP	Zone Improvement Plan

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Tamilnadu Samacheer Kalvi 11th English Grammar Homographs

Check out the topics covered in Grammar Homographs Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Homographs Questons and Answers. This helps to improve your communication skills.

Homographs are words (usually a pair) that are spelled alike but differ in meaning. They may or may not be pronounced the same way.

Homo­graphs	Meaning 1	Meaning 2
affect	to change	a person’s emotions
alternate	to switch back and forth	the second choice
attribute	a characteristic	to give regard to
bass	a type of a fish/the low tones of music or a stringed instrument which plays low tones bow	a device to shoot an arrow/to bend one’s head down or the front of a ship
buffet	a blow or be affected by blows	a large sideboard or a self-served meal of various dishes
close	to be near	to shut
combine	a farming machine which threshes	to put together
conduct	one’s behavior	to lead (oops there is another one) such as a symphony
content	to be satisfied	that which is contained within
contest	to compete in a match of skills	make an argument against something
convert	to change one’s belief system	one whose belief system has been changed
converse	to talk	the opposite
convict	a prisoner	to find one guilty of a charge
deliberate	to carefully consider	to purposely do
desert	to abandon	an arid or barren area
digest	to convert food to simpler compounds	to condense a written work
do	the first tone of the diatonic scale	to accomplish
dove	a bird	to have jumped off
drawer	one who draws	a boxlike compartment that pushes in and pulls out
entrance	an entryway	to put into a trance
excuse	to pardon or forgive	an explanation offered to justify or obtain forgiveness
gyro	short for gyroscope	a type of sandwich with roasted lamb
house	a dwelling	to provide living quarters
intimate	personal	to hint
laminate	to make in layers	a composite made of layers
lead	to guide	a soft dense metal
live	verb meaning to have life	adjective meaning to have life or being on
minute	small	sixty seconds
moderate	of medium or average quality	to preside or direct
number	a mathematical integer like 1, 2, 3,…	to deprive of further feeling
object	something perceptible	to dissent
pasty	medium consistency	a meat pie
perfect	to make correct	that which is correct
permit	to allow something to be done	a document giving permission
present	a gift or that which is happening now	to give a talk or demonstration
produce	vegetables	to bring forth
project	to thrust outward	a plan or housing development
putting	to hit a golf ball on a green	to place in a specific location
rebel	to resist	one who resists
record	to write down	a list or phonograph disk
recreation	a leisurely pastime	to remake
reside	to live in a place	to change a side
resign	to quit	to sign again
row	a series of objects in a straight line	a fight
sake	purpose	a Japanese rice drink
secrete	to generate	to conceal
separate	to divide into groups	disunited or a garment
sewer	one who sews	a conduit for transporting sewage
slough	a swamp	to shed
sow	to scatter seeds	an adult female hog
subject	the theme or topic	to force one’s will onto another
tear	liquid drops secreted by the eye	to pull apart
wind	to encircle	moving air
wound	to have been wrapped in a circular manner	an injury

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Tamilnadu Samacheer Kalvi 11th English Grammar Homophones

Check out the topics covered in Grammar Homophones Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Homophones Questons and Answers. This helps to improve your communication skills.

Homophones are one of the group of words pronounced alike but differ in meaning and spelling or both. (e.g.) carat, carrot; week, weak and hear, here.

Rewrite the following sentences by using the correct homophones for the underlined words:

Question 1.
The story “Beauty and the Beast” is interesting.
Answer:
The story “Beauty and the Beast” is interesting.

Question 2.
Mom gave good advice to her son.
Answer:
Mom gave good advice to her son.

Question 3.
Ice cream was served as dessert.
Answer:
Ice cream was served as dessert.

Question 4.
Cease time by the foreclock.
Answer:
Seize time by the foreclock?

Question 5.
Mothers do not have time for bedtime tails any more.
Answer:
Mothers do not have time for bedtime tales any more

Question 6.
Never pause unhealthy comments.
Answer:
Never pass unhealthy comments.

Question 7.
Trump wood be pleased to continue the military aid to Pakistan.
Answer:
Trump would be pleased to continue the military aid to Pakistan.

Question 8.
The Nellore bound train met with an accident an our ago.
Answer:
The Nellore bound train met with an accident an hour ago.

Question 9.
The grapes on the wine are beautiful.
Answer:
The grapes on the vine are beautiful.

Question 10.
Orthodoxical Hindus never eat meet.
Answer:
Orthodox Hindus never eat meat.

Question 11.
Getting gold medals thrice for running 200 metre dash continuously is a great feet.
Answer:
Getting gold medals thrice for running 200 metre dash continuously is a great feat.

Question 12.
Time may heel some wounds.
Answer:
Time may heal some wounds.

Question 13.
Mom advised me to prey regularly.
Answer:
Mom advised me to pray regularly.

Question 14.
Don’t loose your temper.
Answer:
Don’t lose your temper.

Question 15.
Some believe, “Mite is right”.
Answer:
Some believe, “Might is right”.

Question 16.
She new the way to the supermarket.
Answer:
She knew the way to the supermarket.

Question 17.
King Solomon was always faring in his judgment.
Answer:
King Solomon was always fair in his judgment.

Question 18.
Marina beech is the longest in Asia.
Answer:
Marina beach is the longest in Asia.

Question 19.
An engineer was arrested who had hordes of 2000 rupee notes.
Answer:
An engineer was arrested who had hoards of 2000 rupee notes.

Question 20.
The due seated on the top of a grass sparkled like a diamond.
Answer:
The dew seated on the top of a grass sparkled like a diamond.

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Students can find the most related topics which helps them to analyse the concepts if they practice according to the chapter-wise page. It is necessary for the students to practice more Questions and Answers for Tamilnadu State Board Solutions of 11th Commerce are given in the pdf format in chapter 2 Objectives of Business Questions and Answers so that students can prepare in both online and offline modes. So, Download Samacheer Kalvi 11th Commerce Book Solutions Questions and Answers, Notes Pdf, to score good marks.

Samacheer Kalvi 11th Commerce Solutions Chapter 2 Objectives of Business

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Samacheer Kalvi 11th Commerce Objectives of Business Textbook Exercise Questions and Answers

I. Choose the Correct Answer

Question 1.
The Primary objective of a business is …………………….
(a) Making Profit
(b) Not Making Profit
(c) Special skill
(d) None of the above
Answer:
(a) Making Profit

Question 2.
Occupation of a Doctor is …………………….
(a) Employment
(b) Business
(c) Profession
(d) Sole Proprietor
Answer:
(c) Profession

Question 3.
The following does not characterize business activity?
(a) Production of goods and services
(b) Presence of Risk
(c) Sale or exchange of goods and services
(d) Salary or wages
Answer:
(d) Salary or wages

Question 4.
Activities undertaken out of love and affection or with social service motive are termed as …………………….
(a) Economic activities
(b) Monetary activities
(c) Non Economic Activities
(d) Financial Activities
Answer:
(c) Non Economic Activities

II. Very Short Answer Questions

Question 1.
Define Economic Activities.
Answer:
Economic activities are those activities which are undertaken to earn money or financial gain for livelihood.

Question 2.
What do you mean by Business?
Answer:
Business refers to any human activity undertaken on a regular basis with the object to earn profit through production, distribution, sale or purchase of goods and services.

Question 3.
Define Profession.
Answer:
Professions are those occupations which involves rendering of personal services of a special and expert nature. A profession is something which is more than a job. It is a career for someone who is competent in their respective areas.

Question 4.
What do you mean by Employment?
Answer:
It refers to the occupation in which people work for others and get remuneration in the form of vvage.s or salaries.

III. Short Answer Questions

Question 1.
What do you mean by human activities? Explain.
Answer:
Human activity is an activity performed by a human being to meet his/her needs and wants or may be for personal satisfaction. Human activities can be categorized into economic and non – economic activities.

Question 2.
Write short notes on:

1. Business
2. Profession

Answer:
1.Business refers to any human activity undertaken on a regular basis with the object to earn profit through production, distribution, sale or purchase of goods and services.

2. Professions are those occupations which involves rendering of personal services of a special and expert nature. A profession is something which is more than a job. It is a career for someone who is competent in their respective areas.

Question 3.
Explain the concept of ‘Business’.
Answer:
Business refers to any human activity undertaken on a regular, basis with the object to earn profit through production, distribution, sale or purchase of goods and services. Business activities are connected with raising, producing or processing of goods. Industry creates form utility to goods by bringing materials into the form which is useful for intermediate consumption or final consumption by consumers.

Question 4.
Briefly state the human objectives of a business.
Answer:
Human objectives refer to the objectives aimed at the well – being as well as fulfillment of expectations of employees as also of people who are disabled, handicapped and deprived of proper education and training. The human objectives of business may thus include economic well – being of the employees, social and psychological satisfaction of employees and development of human resources.

IV. Long Answer Questions

Question 1.
Explain the characteristics of Business.
Answer:
1. Production or Procurement of Goods : Goods must be produced or procured in order to satisfy human wants.

2. Sale, Transfer or Exchange : There must be sale or exchange of goods or services. When a person weaves cloth for his personal consumption, it is not business because there is no transfer or sale.

3. Dealing in Goods and Services : Goods produced or procured may be consumer goods like cloth, pen, brush, bag etc., or producer-goods like plant and machinery. Services refer to activities like supply of electricity, gas or water, transportation, banking, insurance etc.

4. Regularity of Dealings : An isolated dealing in buying and selling does not constitute business. The transactions must be regular.

5. Profit Motive : An important feature of business is profit motive. Business is an economic activity by which human beings make their living.

6. Element of Risk : The profit that is expected in a business is always uncertain because it depends upon a number of factors beyond the control of the businessman.

Question 2.
Compare business with profession and employment.
Answer:

Question 3.
Discuss any five objectives of business.
Answer:
1. Economic Objectives:
Economic objectives of business refer to the objective of earning profit and also other objectives that are necessary to be pursued to achieve the profit objective, which includes creation of customers, regular innovations and best possible use of available resources.

2. Social Objectives:
Social objective are those objectives of business, which are desired to be achieved for the benefit of the society. Since business operates in a society by utilizing its scarce resources, the society expects something in return for its welfare.

3. Organizational Objectives:
The organizational objectives denote those objectives an organization intends to accomplish during the course of its existence in the economy like expansion and modernization, supply of quality goods to consumers, customers’ satisfaction, etc.

4. Human Objectives:
Human objectives refer to the objectives aimed at the well – being as well as fulfillment of expectations of employees as also of people who are disabled, handicapped and deprived of proper education and training.

The human objectives of business may thus include economic well – being of the employees, social and psychological satisfaction of employees and development of human resources.

5. National Objectives:
Being an important part of the country, every business must have the objective of fulfilling national goals and aspirations.

Question 4.
Distinguish between economic and non – economic activity.
Answer:

Samacheer Kalvi 12th Commerce Objectives of Business Additional Questions and Answers

I. Choose the Correct Answer:

Question 1.
Human activities can be categorised into …………….. types.
(a) One
(b) Two
(c) Three
(d) Four
Answer:
(b) Two

Question 2.
Activities undertaken with the object of earning money are called …………….. activities.
(a) Economic
(b) Non – economic
(c) Financial
(d) Money
Answer:
(a) Economic

Question 3.
Occupations may be classified into ……………. categories.
(a) One
(b) Two
(c) Three
(d) Four
Answer:
(c) Three

Question 4
………………. refers to the occupation in which people work for others and get remuneration in the form of wages or salaries.
(a) Employment
(b) Profession
(c) Business
(d) Industry
Answer:
(a) Employment

II. Very Short Answer Questions

Question 1.
What do you mean by non – economic activities?
Answer:
Activities undertaken to satisfy social and psychological needs are called non – economic activities.

Question 2.
How many types of occupation are there?
Answer:

1. Employment
2. Profession
3. Business

Question 3.
What is Private Enterprises?
Answer:
An enterprise is said to be a private enterprise where it owned, managed and controlled by persons other than Government.

Question 4.
What is Public Enterprises?
Answer:
An enterprise is said to be a public enterprise where it is owned, managed and controlled by Government or any of its agencies or both.

Question 5.
What is Joint Enterprise?
Answer:
An enterprise is said to be a joint enterprise where it is owned, managed and controlled by Government and private entrepreneurs. Example – Maruti Suzuki

III. Short Answer Questions

Question 1.
Give three examples of Economic Activities.
Answer:

1. Production of goods by manufacturer
2. Distribution of goods by wholesaler
3. Selling by retailers

Question 2.
Write any three characteristics of Business.
Answer:
1. Production or Procurement of Goods:
Goods must be produced or procured in order to satisfy human wants.

2. Sale, Transfer or Exchange:
There must be sale or exchange of goods or services. When a person weaves cloth for his personal consumption, it is not business because there is no transfer or sale.

3. Dealing in Goods and Services:
Goods produced or procured may be consumer goods like cloth, pen, brush, bag etc., or producer goods like plant and machinery. Services refer to activities like supply of electricity, gas or water, transportation, banking, insurance etc.

For Own Thinking 

Question 1.
Do you know that there are white collar, blue collar, pink collar jobs? Collect the information and discuss.
Answer:
Examples:

1. White collar jobs – managerial positions
2. Blue collar jobs – skilled or unskilled working class, mechanics
3. Pink collar jobs- nursing, teaching, etc.

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Tamilnadu Samacheer Kalvi 11th English Grammar Prefix/Suffix

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Question 1.
Form a new word by adding a suitable prefix to the root word “important”.
(a) in________ (b) un________ (c) dis________ (d) mis________
Answer:
(b) unimportant

Question 2.
Form a new word by adding a prefix to the root word “difference”.
(a) un________ (b) in________ (c) im________ (d) dis________
Answer:
(b) indifference

Question 3.
Form a new word by adding a suitable prefix to the root word “fortune”.
(a) in________ (b) un________ (c) dis________ (d) mis________
Answer:
(d) misfortune

Question 4.
Form a new word by adding a suitable suffix to the root word “poet”.
(a) ________al (b) ________ic (c) ________ile (d) ________ion
Answer:
(b) poetic

Question 5.
Form a new word by adding a suitable suffix to the root word “kind”.
(a) ________ment (b) ________able (c) ________ity (d) ________ness
Answer:
(d) kindness

Question 6.
Form a new word by adding a suitable suffix to the root word “dismiss”.
(a) ________ment (b) ________ate (c) ________al (d) ________ular
Answer:
(c) dismissal

Question 7.
Form a new word by adding a suitable suffix to the root word ‘portray’.
(a) ________ment (b) ________able (c) ________al (d) ________ic
Answer:
(c) portrayal

Question 8.
Form a new word by adding a suitable suffix to the root word “doubt”.
(a) ________hood (b) ________ism (c) ________ly (d) ________fill
Answer:
(d) doubtful

Question 9.
Form a new word by adding a suitable suffix to the root word “need”.
(a) ________ness (b) ________ted. (c) ________y (d) ________ment
Answer:
(c) needy

Question 10.
Form a new word by adding a suitable suffix to the root word “eat”.
(a) ________able (b) ________ment (c) ________ly (d) ________ity
Answer:
(a) eatable

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Tamilnadu Samacheer Kalvi 11th English Grammar Framing Sentences

Check out the topics covered in Grammar Framing Sentences Questions and Answers before you start your preparation. Improve your grammar skills with the help of Samacheer Kalvi 11th English Book Solutions Questions and Answers pdf links. The solutions for Tamilnadu State Board 11th English Textbook are prepared by the English experts. So, if you follow Tamilnadu State Board Solutions 11th English Textbook Solutions you can cover all the topics in Grammar Framing Sentences Questons and Answers. This helps to improve your communication skills.

Question 1.
Use the word “equal” as a noun, adjective, verb and adverb in your own sentences.
Answer:

• Sangeetha treated Tarun and Kavin as equals, (noun)
• Father gave equal share of his property to his sons and daughters, (adj)
• One plus one equals two. (verb)
• We decided to divide the amount equally, (adverb)

Question 2.
Use the word ‘tear’ as a noun, verb, adjective and adverb in your own sentences.
Answer:

• Don’t shed tears over loss of money, (noun)
• Don’t tear the book, (verb)
• She was given a tearful farewell, (adj)
• Sheela tearfully left the hall, (adverb)

Question 3.
Use the word ‘like’ as a noun, verb, adjective and preposition in your own sentences.
Answer:

• Great gurus are above likes and dislikes, (noun)
• You need to carry out your duties whether you like it or not. (verb)
• You must befriend like-minded persons, (adj)
• Raj an looks like his father, (preposition)

Question 4.
Use the word ‘well’ as a noun, verb and an adjective in your own sentences.
Answer:

• There is an unused well behind my house, (noun)
• Tears welled up in her eyes on hearing her father’s death, (verb)
• Sangeetha is well qualified for the Professor post, (adj)

Question 5.
Use the word “fine” as an adjective, a noun and a verb.
Answer:

• She wore a fine jewel which caught everyone’s eyes, (adj)
• The driver was asked to pay fine for skipping the red signal, (noun)
• I was fined for over-speeding, (verb)

Question 6.
Use the word “after” as an adverb, a preposition and conjunction.
Answer:

• Jill came tumbling after, (adv)
• He returned after the accident, (prep)
• After Martin finished his studies, he returned to India, (conjunction)

Question 7.
Use the word “wrong” as an adjective, adverb and a noun.
Answer:

• You have taken the wrong road, (adj)
• Hari was wrongly arrested, (adv)
• We must differentiate the right and wrong, (noun)

Question 8.
Use the word “each” as an adjective and a pronoun.
Answer:

• Each day brings its opportunity, (adj)
• I received a rupee from each, (pronoun)

Question 9.
Use the word “as” as an adverb and a conjunction.
Answer:

• We walked as fast as we could, (adv)
• As he was late, we went without him. (conj)

Question 10.
Use the word “fast” as a noun, an adjective and adverb.
Answer:

• He didn’t take anything during the fast, (noun)
• I missed the fast train, (adj)
• She speaks fast, (adv)

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Tamilnadu Samacheer Kalvi 11th Economics Solutions Chapter 12 Mathematical Methods for Economics

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Samacheer Kalvi 11th Economics Mathematical Methods for Economic Text Book Back Questions and Answers

Part – A
Multiple Choice Questions

Question 1.
Mathematical Economics is the integration of ____________
(a) Mathematics and Economics
(b) Economics and Statistics
(c) Economics and Equations
(d) Graphs and Economics
Answer:
(a) Mathematics and Economics

Question 2.
The construction of demand line or supply line is the result of using ____________
(a) Matrices
(b) Calculus
(c) Algebra
(d) Analytical Geometry
Answer:
(d) Analytical Geometry

Question 3.
The first person used the mathematics in Economics is ____________
(a) Sir William Petty
(b) Giovanni Ceva
(c) Adam Smith
(d) Irving Fisher
Answer:
(a) Sir William Petty

Question 4.
Function with single independent variable is known as ____________
(a) Multivariate Function
(b) Bivariate Function
(c) Univariate Function
(d) Polvnomial Function
Answer:
(c) Univariate Function

Question 5.
A statement of equality between two quantities is called ____________
(a) Inequality
(b) Equality
(c) Equations
(d) Functions
Answer:
(c) Equations

Question 6.
An incremental change in dependent variable with respect to change in independent variable is known as ____________
(a) Slope
(b) Intercept
(c) Variant
(d) Constant
Answer:
(a) Slope

Question 7.
(y – y₁) = m (x – x₁) gives the ____________
(a) Slope
(b) Straight line
(c) Constant
(d) Curve
Answer:
(b) Straight line

Question 8.
Suppose D = 50 – 5P. When D is zero then ____________
(a) P is 10
(b) P is 20
(c) P is 5
(d) Pis-10
Answer:
(a) Pis 10

Question 9.
Suppose D = 150 – 50P. Then, the slope is
(a) -5
(b) 50
(c) 5
(d) – 50
Answer:
(d) – 50

Question 10.
Suppose determinant of a matrix A = 0, then the solution ____________
(a) Exists
(b) Does not exist
(c) Is infinity
(d) Is zero
Answer:
(b) Does not exist

Question 11.
State of rest is a point termed as ____________
(a) Equilibrium
(b) Non – Equilibrium
(c) Minimum Point
(d) Maximum Point
Answer:
(a) Equilibrium

Question 12.
Differentiation of constant term gives ____________
(a) one
(b) zero
(c) infinity
(d) non – infinity
Answer:
(b) zero

Question 13.
Differentiation of xⁿ is ____________
(a) nx ^{(n – 1)}
(b) nx ^{(n + 1)}
(c) zero
(d) one
Answer:
(a) nx ^{(n – 1)}

Question 14.
Fixed Cost is the ____________ term in cost function represented in mathematical form.
(a) Middle
(b) Price
(c) Quantity
(d) Constant
Answer:
(d) Constant

Question 15.
The first differentiation of Total Revenue function gives ____________
(a) Average Revenue
(b) Profit
(c) Marginal Revenue
(d) Zero
Answer:
(c) Marginal Revenue

Question 16.
The elasticity of demand is the ratio of ____________
(a) Marginal demand function and Revenue function
(b) Marginal demand function to Average demand function
(c) Fixed and variable revenues
(d) Marginal Demand function and Total demand function
Answer:
(b) Marginal demand function to Average demand function

Question 17.
If x + y = 5 and x – y = 3 then, Value of x ____________
(a) 4
(b) 3
(c) 16
(d) 8
Answer:
(a) 4

Question 18.
Integration is the reverse process of
(a) Difference
(b) Mixing
(c) Amalgamation
(d) Differentiation
Answer:
(d) Differentiation

Question 19.
Data processing is done by ____________
(a) PC alone
(b) Calculator alone
(c) Both PC and Calculator
(d) Pen drive
Answer:
(c) Both PC and Calculator

Question 20.
The command Ctrl + M is applied for ____________
(a) Saving
(b) Copying
(c) getting new slide
(d) deleting a slide
Answer:
(c) getting new slide

Part – B
Answer the following questions in one or two sentences

Question 21.
If 62 = 34 + 4x  what is x?
solution:
If 62 = 34 + 4x what is x
Given:
62 = 34 + 4x
34 + 4x = 62
4x = 62-34
4x = 28
x = \(\frac { 28 }{ 4 }\)
x = 7

Question 22.
Given the demand function q = 150 – 3p, derive a function for MR.
Solution:
Given:
q = 150 – 3p
\(\frac { dq }{ dq }\) = 0 – 3 (1)
\(\frac { dq }{ dq }\) = – 3
Revenue = price × quantity = p (150 – 3p)
= p (150 – 3p)
= 150p – 3p²
MR = \(\frac { dq }{ dq }\) = 150 \(\frac { dq }{ dq }\) -6p \(\frac { dq }{ dq }\)
= 150 (\(\frac { – 1 }{ 3 }\)) – 6p (\(\frac { – 1 }{ 3 }\))
= – 50 + 2p
= – 50 = 2 (\(\frac { 150 – q }{ 3 }\))
= 50 + 100 + \(\frac { – 2 q }{ 3 }\)
= 50 – \(\frac { 2 q }{ 3 }\)
= 50 – \(\frac { 2 }{ 3 }\) (150 – 3p)
MR = 2p – 50

Question 23.
Find the average cost function where TC = 60 + 10x +15x²
Solution:
Given:
TC = 60 + 10x +15x²
Average Cost = \(\frac { TC }{ x }\)
= \(\frac{60+10 x+15 x^{2}}{x}\)
= \(\frac { 60 }{ x }\) + \(\frac { 10x }{ x }\) + \(\frac{15 x^{2}}{x}\)
AC = \(\frac { 60 }{ x }\) + 10 + 15x

Question 24.
The demand function is given by x = 20 – 2p – p² where p and x are the price and the quantity respectively. Find the elasticity of demand for p = 2.5.
Solution:
Given:
x = 20 – 2p – p²
p = 2.5
e_d = (\(\frac { p }{ x }\)) (\(\frac { dx }{ dp }\))
If p = 2.5 then x,
x = 20 – 2 (2.5) – (2.5)²
= 20 – 5 – (6.25)
= 15 – 6.25
x = 8.75
Here x = 20 – 2p – p²
\(\frac { dx }{ dp }\) = 0 – 2 (1) – 2p
= -2 – 2p
If P = 2.5 then
\(\frac { dx }{ dp }\) = -2 – 2 (2.5)
= -2 – 5
\(\frac { dx }{ dp }\) = – 7
e_d = \(\frac { -2.5 }{ 8.75 }\) × – 7
= 0.2857 × – 7
e_d = 2

Question 25.
Suppose the price p and quantity q of a commodity are related by the equation q = 30 – 4p – p²
find :

1. e_d at p = 2
2. MR

Solution:
Given:
q = 30 – 4p – p²
1. e_d = (\(\frac { p }{ x }\))(\(\frac { dx }{ dp }\))
If P = 2 then
x = 30 – 4 (2) – 2²
= 30 – 8 – 4
=20 – 12
x = 18
\(\frac { dx }{ dp }\) =30 – 4p – p²
= 0 – 4 – 2p
= 0 – 4 – 2 (2)
= -4 -4
= -8
e_d = \(\frac { 2 }{ 18 }\) (-8)
x = – \(\frac { 16 }{ 18 }\)
e_d = – 0.88

2. MR
TR = p ×q
TR = p (30 – 4p – p²)
= 30p – 4p² – p³
MR = \(\frac { d(TR) }{ dp }\)
= 30 – 8p – 3p²
If p = 2
MR = 30 – 8 (2) – 3 (2)²
= 30 – 16 12
MR = 2

Question 26.
What is the formula for elasticity of supply if you know the supply function?
Solution:
Elasticity of supply = (\(\frac { p }{ q }\)) (\(\frac { dq }{ dp }\))

Question 27.
What are the Main menus of MS Word?
Answer:

1. Home menu
2. Insert
3. Page layout
4. Reference
5. Review
6. View
7. Print layout
8. Outline
9. Task pane
10. Tool bars
11. Header and footer
12. Foot notes

Part – C
Answer the following questions in one Paragraph

Question 28.
Illustrate the uses of Mathematical Methods in Economics.
Answer:

1. Mathematical methods help to present the economic problems in a more precise form.
2. Mathematical methods help to explain economic concepts.
3. Mathematical methods help to use a large number of variables in economic analyses.
4. Mathematical methods help to quantify the impact or effect of any economic activity implemented by government or anybody.

Question 29.
Solve for A: quantity demanded if 16x – 4 = 68 + 7x.
Solution:
Given:
16x  – 4 = 68 + 1x
16x – 7x = 68 + 4
9x = 72
x = (\(\frac { 72 }{ 9 }\))
x = 8

Question 30.
A firm has the revenue function R = 600q – 0.03q² and the cost function is C = 150q + 60,000, where q is the number of units produced. Find AR, AC, MR and MC.
Solution:
Given:
R = 600q – 0.03q²
C = 150q + 60000

(i) AR = \(\frac { R }{ q }\)
= \(\frac{600 q-0.03 q^{2}}{q}\)
= \(\frac { 600q }{ q }\) – \(\frac{0.03 \mathrm{q}^{2}}{\mathrm{q}}\)
= AR = 600 – 0.0.q

(ii) AC = \(\frac { c }{ q }\)
= \(\frac { 150q + 60000 }{ q }\)
= \(\frac { 150q }{ q }\) + \(\frac { 60000 }{ q }\)
AC = 150 + (\(\frac { 60000 }{ q }\))

(iii) MR = \(\frac { dr }{ dq }\)
R = 600q – 0.03q
\(\frac { dR }{ dq }\) = 600 (1) – 0.03 (2q)
MR = 600 – 0.06q

(iv) MC = \(\frac { dc }{ dq }\)
C = 150q + 60000
\(\frac { dc }{ dq }\) = 150 (1) + 0
MC = 150

Question 31.
Solve the following linear equations by using Cramer’s rule.
x₁ – x₂ + x₃ = 2
– x₁ – x₂ – x₃ = 0
– x₁ – x₂ – x₃ = – 6
Solution:

= 1 (- 1 – 1) + 1 (- 1 – 1) + 1 (- 1 + 1)
= 1(- 2) + 1 (0)
∆ = – 2 – 2
∆ = – 2 – 2
∆ = – 4

= 2 (- 1 – 1) + 1 (0 + 6) + 1 (0 – 6)
= 2 (- 2) + 1(6) + 1 (- 6)
= – 4 + 6 – 6
∆ = – 4

= 1 (0 – 6) – 2 (- 1 – 1)+1(- 6 + 0)
= 1 (- 6) – 2 (- 2) + 1 (- 6)
= – 6 + 4 – 6
= – 12 + 4
∆x₃ = -8

1 (- 6 + 0) + 1 (- 6 + 0) + 2 (- 1 + 1)
= 1 (- 6) + 1 (- 6) + 2 (0)
= – 6 – 6
∆x₃ = – 12

Question 32.
If a firm faces the total cost function TC = 5+ x² where x is output, what is TC when x is 10?
Solution:
Given:
TC = 5 + x²
If x = 10
TC = 5 + 10²
= 5 + 100
TC = 105

Question 33.
If TC = 2.5q³ – 13q² + 50q + 12 derive the MC function and AC function.
solution:
Given:
TC= 2.5q³ – 13q² + 50q + 12
Marginal cost function
MC = \(\frac { d(TC) }{ dQ }\)
= \(\frac { d }{ dq }\) [2.5q³ – 13q² + 50q + 12]
= 2.5 (3q²) – 13 (2q) + 50 (1) + 0
MC = 7.5q – 26q + 50
Average cost AC =\(\frac { TC }{ q }\)
= \(\frac{2.5 q^{3}-13 q^{2}+50 q+12}{q}\)
= \(\frac{2.5 q^{3}}{q}\) – \(\frac{13 q^{2}}{q}\) + \(\frac { 50q }{ q }\) + \(\frac { 12 }{ q }\)
AC = 2.5q – 13q + 50 + \(\frac { 12 }{ q }\)

Question 34.
What are the steps involved in executing a MS Excel Sheet?
Answer:
MS excel is used in data analysis by using formula. A spread sheet is a large sheet of paper which contains rows and columns.
To start a excel there are various options.
Click Start → Program → Microsoft Excel
Double click the MS Excel Icon from the Desktop.

Part – D
Answer the following questions in about a page

Question 35.
A Research scholar researching the market for fresh cow milk assumes that Qt = f (Pt, Y, A, N, Pc) where Qt is the quantity of milk demanded, Pt is the price of fresh cow milk, Y is average household income, A is advertising expenditure on processed pocket milk, N is population and Pc is the price of processed pocket milk.

1. What does Qt= f (Pt, Y,A,N, Pc) mean in words?
2. Identify the independent variables.
3. Make up a specific form for this function. (Use your knowledge of Economics to deduce whether the coefficients of the different independent variables should be positive or negative.)

Solution:
1. Qt is the function of Pt, Y, A, N, Pc
The determinants of demand are
Pt = Price of fresh cow milk.
Y = Average household income
A = Advertising expenditure on processed pocket milk
N = Population
Pc = Price of processed pocket milk.

2. Y and N are independent variables

3. Average household income and population are directly proportional to quantity demanded of cow’s milk (ie if Y and N increases Qt also increase)
Price of fresh cow milk, advertising expenditure on pocket milk and price of processed pocket milk are inversely proportional to Qt.
There
Qt = – aPt + by – CA + dN – ePc

Question 36.
Calculate the elasticity of demand for the demand schedule by using differential calculus method P = 60 – 0.2 Q where price is

1. zero
2. Rs.20
3. Rs.40

Solution:
P = 60 – 0.2 Q
0.2 Q = 60 – P
(0.2 Q) 10 = (60 – p) 10
2 Q = 600 – 10p
Q = 300 – 5p
Given demand function Q = 300 – 5p
1. If P = 0 then Q = 300 – 5 (0)
= 300
\(\frac { dq }{ dp }\) = 300 – 5p
= 0 – 5
\(\frac { dq }{ dp }\) = – 5
e_d = \(\frac { p }{ p }\)(\(\frac { dq }{ dp }\))
= \(\frac { 0 }{ 300 }\)(-5)
e_d = 0

2. If p = 20 then Q = 300 = 5 (20)
= 200
e_d = \(\frac { 20 }{ 200 }\) (-5)
= – \(\frac { 100 }{ 200 }\)
e_d = – 0.5

3. If = 40 then Q = 300 – 5 (40)
= 300 – 200
Q = 100
e_d = \(\frac { p }{ q }\)(\(\frac { dq }{ dp }\))
= \(\frac { 40 }{ 100 }\) (-5)
e_d = – \(\frac { 200 }{ 100 }\)
e_d = -2

Question 37.
The demand and supply functions are pd=1600 – x² and ps = 2x² + 400 respectively. Find the consumer’s surplus and producer’s surplus at equilibrium point.
Answer:
At equilibrium p_d = p_s
1600 – x² = 2x² + 400
– x² – 2x² = 400 – 1600
– 3x² = – 1200
x² = \(\frac { 1200 }{ 3 }\)
x² = 400
x = 20
If x = 20 p_o = 1600 – (20)²
= 1600 – 400
p_o = 1200
p_o x_o = 1200 × 20
= 24000

= 8000 – \(\frac { 8000 }{ 3 }\)
= \(\frac { 24000 – 8000 }{ 3 }\)
= \(\frac { 16000 }{ 3 }\)
C.S = 5333.3

Question 4.
What are the ideas of information and communication technology used in economics?
Answer:
Information and Communication Technology (ICT) is the infrastructure that enables computing faster and accurate

In economics the uses of mathematical and statistical tools need the support of ICT for data compiling, editing, manipulating and presenting the results.

Samacheer Kalvi 11th Economics Introduction To Micro-Economics Additional Questions and Answers

Match the following and choose the answer using the codes given below

Question 1.

(a) 1 2 3 4
(b) 2 3 4 1
(c) 3 4 2 1
(d) 4 3 1 2
Answer:
(c) 3 4 2 1

Question 2.

(a) 4 3 1 2
(b) 2 3 4 1
(c) 1 2 3 4
(d) 3 2 1 4
Answer:
(a) 4 3 1 2

Question 3.

(a) 1 2 3 4
(b) 3 4 1 2
(c) 4 3 1 2
(d) 2 3 4 1
Answer:
(b) 3 4 1 2

Choose the incorrect statement

Question 4.
(a) Differentiation of constant is zero
(b) Differentiation of xn is x
(c) Constant value is known as fixed cost
(d) x° = 1 when x = 0
Answer:
(d) x° = 1 when x = 0

Question 5.
(a) The population density of T.N is 480 as per 2011 census.
(b) There are 30 national highways in Tamil Nadu.
(c) Tamil Nadu has the highest installed wind energy capacity in India.
(d) The headquarters of southern railway is at Trichy
Answer:
(b) There are 30 national highways in Tamil Nadu.

Pick the odd one out

Question 6.
(a) Arithmetic
(b) Comparison
(c) Text concatenation
(d) Foot note
Answer:
(d) Foot note

Question 7.
(a) X = independent variable
(b) Y = dependent variable
(c) X = f (y)
(d) M – slope
Answer:
(c) X = f (y)

Choose the correct statement

Question 8.
(a) X + Y = 6 and X – Y = 2 then X = 4
(b) If D = 60 – 6P when D is 0 then P is 20
(c) In the equation 0.1 X² + 1 OX + 100 constant = 10
(d) If Y = 6X³ then slope is 9X:
Answer:
(a) X + Y = 6 and X – Y = 2 then X = 4

Choose the incorrect pair

Question 9.

Answer:
(c) \(\frac { d(c) }{ dx }\) = 0 where c is a variable

Question 10.

Answer:
(a) ∫f(x) dx – (i) F (x) + C

Fill in the blanks with suitable option given below

Question 11.
__________ is the first to use mathematics in economics.
(a) Giovanni Ceva
(b) William petty
(c) J.M.Keynes
(d) None
Answer:
(b) William petty

Question 12.
The formula for constructing a straight line is __________
(a) \(\mathrm{m}=\frac{\mathrm{y}_{2}-\mathrm{y}_{1}}{\mathrm{x}_{2}-\mathrm{x}_{1}}\)
(b) y = mx
(c) \(\frac { Change in x }{ Change in y }\)
(d) (y -y₁) = m (x – x₁)
Answer:
(d) (y -y₁) = m (x – x₁)

Question 13.
If the determinant ∆ = ?, then solution does not exist
(a) 1
(b) 0
(c) 2
(d) -1
Answer:
(b) 0

Question 14.
Power rule ∫xdx ______
(a) \(\frac{x^{2}}{n+1}\) + C
(b) \(\frac { pq }{ n + 1 }\) + C
(c) \(\frac{\mathrm{x}^{(\mathrm{n}+1)}}{\mathrm{n}+1}\) + C
(d) None
Answer:
(c) \(\frac{\mathrm{x}^{(\mathrm{n}+1)}}{\mathrm{n}+1}\) + C

Question 15.
______ is a rectangular array of numbers systematically arranged in rows and columns within brackets.
(a) Matrix
(b) Determinants
(c) Function
(d) None
Answer:
(a) Matrix

Choose the best option

Question 16.
__________ provides the solution of a system of linear equations with ‘n’ variables and ‘n’ equations
(a) Demand function
(b) Consumer’s surplus
(c) Equilibrium
(d) Cramer’s rule
Answer:
(d) Cramer’s rule

Question 17.
The first known writer to apply mathematical method to economic problems was __________
(a) Giovanni ceva
(b) William petty
(c) Keynes
(d) None
Answer:
(a) Giovanni ceva

Question 18.
In y = f (x) which is the independent variable
(a) f
(b) y
(c) x
(d) None
Answer:
(c) x

Question 19.
Formula for marginal cost is
(a) MC = \(\frac { d(TC) }{ dQ }\)
(b) MC = \(\frac { d(TC) }{ dP }\)
(c) MC = \(\frac { d(TC) }{ dQ }\)
(d) None
Answer:
(a) MC = \(\frac { d(TC) }{ dQ }\)

Question 20.
Function with a single independent variable are called _____
(a) Multivariate function
(b) Consumption function
(c) Simple univariate function
(d) None
Answer:
(c) Simple univariate function

Part – B
Answer the following questions in one or two sentences

Question 1.
What is economic analysis?
Answer:
Economic analysis is a systematic approach to determine the optimum use of scare resources and choose available alternatives and select the best alternative to achieve a particular objective.

Question 2.
What is the slope of a straight line ?
Answer:
Slope or gradient of the line represents the ratio of the changes in vertical and horizontal lines

Question 3.
State the phases of evolution of ICT?
Answer:

1. Computer
2. PC
3. Micro Processor
4. Internet and
5. Wireless links.

Question 4.
What are determinants ?
Answer:
The determinant is an arrangement of same elements of the corresponding matrix into rows and columns by enclosing vertical lines.

Question 5.
State the application of differential calculus.
Answer:

1. To find the rate of change in demand with respect to price.
2. To find the rate of change in income with respect to the investment.

Question 6.
What is ICT?
Answer:
Information and Communication Technology (ICT) is the infrastructure that enables computing faster and accurate.

Question 7.
What is a work sheet?
Answer:
A worksheet is a table like document containing rows and columns with data and formula

Part – C
Answer the following questions in one Paragraph

Question 1.
The marginal cost function for producing x units is y = 23 + 16.x – 3.x2 and the total cost for producing zero unit is Rs. 40. Obtain the total cost function and the average cost function.
Solution:
Given Marginal cost functions
y = 23 + 16x – 3x²
C = 40

Average cost function = \(\frac { TC }{ x }\)
= \(\frac{23 x+8 x^{2}-x^{3}+40}{x}\)
AC = 23 + 8x – x + \(\frac { 40 }{ x }\)

Question 2.
Find the solution of the system of equations
5x₁ + 3x₂ = 30
6x₁ – 2X₂ = 8
Solution :

Question 3.
If the demand function is p = 35 – 2x – x² and the demand x_o is 3, what will be the consmer’s surplus
Solution:
Given:
p = 35 – 2x – x²
If x = 3 then
p = 35-2 (3) – 3²
= 35 – 6 – 9
p = 20

= 35 (3) – 9 – 9 – 60
= 105 – 9 – 9 – 60
CS = 27 units

Question 4.
Given the total cost function TC = 15 + 3Q2 + 7Q3 drive the marginal cost function.
Solution:
Given:
TC = 15 + 3Q² + 7Q²
MC = \(\frac { d(15) }{ dQ }\) + \(\frac{\mathrm{d}\left(3 \mathrm{Q}^{2}\right)}{\mathrm{d} \mathrm{Q}}\) + \(\frac{\mathrm{d}\left(7 \mathrm{Q}^{3}\right)}{\mathrm{d} \mathrm{Q}}\)
= 0+ 3 (2) Q + 7 (3) Q + (3) Q²
MC = 6Q + 21 Q²

Question 5.
Find the value of the determinant of the matrix
Solution:
Given:

= 3 (-5) -4 (-19) +7 (-3)
= -15 + 76 – 21
A = 40

Question 6.
Find the value of the determinant of the matrix A =.
Solution:
Given:

Part – D
Answer the following questions in about a page

Question 1.
Find the equation of a straight line which passes through two points (2,2) and (4, -8) which are (x₁, y₁) and (x₂, y₂) respectively.
Note : For drawing a straight line, at least two points are required. Many straight lines can pass through a single point.
Solution:
Here x₁ = 2 y_1- = 2 and x₂ = 4 y₂ = – 8
Formula for constructing a straight line.

Slope (m) = – 5
y intercept = 12
Constant = C
This is of this from y = mx + C
y = 12 – 5x
When x = 0
y = 12
When y = 0
x = \(\frac { 12 }{ 5 }\) = 2.4

Question 2.
Find the solution of the equation system
Solution:
7x₁ – x₂ – x₃ = 0
10x₁ – 2x₂ + x₃ = 8
6x₁ + 3x₂ – 2x₃ = 7

= 7 (4 – 3) + 1 (-20 -6) -1 (30 + 12)
= 7 (1) + 1 (-26) -1 (42)
+ 7 -26 – 42
∆ = – 61

= 0 (4 -3) + 1 (-16 -7) – 1 (24+14)
= 0 + 1 (-23) – 1 (38)
= -23 – 38
= -61

= 7 (-16 – 7) – 0 (- 20 – 6) – 1 (70 – 48)
= 7 ( -23) + 0 (-20 – 6) – 1(70 – 48)
= – 161 – 22
= – 183

= 7(-14 -24) + 1 (70 – 48) + 1 (30 + 12)
= 7 (-38) + 1 (22) + 0
= – 266 + 22
= – 244

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