GYAN DEVI SALWAN PUBLIC SCHOOL

SUMMER HOLIDAY HOMEWORK, 2019-20

CLASS XI ENGLISH 1. Research on the Egyptians civilizations –with particular reference to Tut’s

Mummy and its discovery. Write a report on the details found.

2. Research on Khushwant Singh’s life and works. Find out about the role of

Khushwant Singh’s father in building Delhi.

3. Research on sailing terminology and parts of a boat and gather information

about Isle Amsterdam.

4. Design a poster as an appeal for conserving water as most parts of India are

facing serious problems and have been hit by drought.

5. Cut out 5 clippings of Classified Ads under the heads –

· For sale

· To-let

· Situation vacant

· Car for Sale

6. You are pained to see the plight of stray animals in the streets. Write an

article for the newspaper on the need of looking after such animals.

7. Regular practice of yoga can help in maintaining good health and even in the

prevention of many ailments. Write a speech in 150-200 words to be

delivered in the morning assembly on the usefulness of Yoga.

8. Your school is organising the CBSE Cluster next month. Draft a notice for

your school notice board and mention all the details of programme.

NOTE : The Holiday Homework should be done in English register.

9. Read at least two works of fiction of your choice.

MATHEMATICS 1. Practice 3 marks, 4 marks questions of NCERT Exemplar in homework

register of the following chapters:

i. Sets

ii. Relations and functions

iii. Trigonometry

2. Attempt objective type/MCQ paper containing 50 HOTS and

Application based exploratory questions attached. Take a print out of the same and

paste it in homework register.

ACCOUNTANCY Project on vouchers:

a. visit an organization and a bank

b. collect 10 source vouchers from there and write about them in details

Assignment of hots questions

BUSINESS

STUDIES Students to make a case study on the Jet Airways bankruptcy and its impact

on its stakeholders .

Students to do the attached assignment in their notebook.

ECONOMICS Part A : PROJECT FILE : make a project file using all statistical tools (namely

collection of data, organization of data, presentation of data, analysis and

interpretation of data) showing consumer's preferences of the product. Use

questionnaire as a tool of collection of data.

Part B : ASSIGNMENT of the course done till may.

PHYSICS 1. Prepare an investigatory project on any topic related to physics.

2. Revise chapters done in the class.

3. Do NCERT unsolved questions of chapter – 2 on A 4 sheets.

CHEMISTRY 1. Prepare an investigatory project on any topic related to chemistry.

2. Revise chapters done in the class.

3. Assignment – Some Basic Concepts Of Chemistry

BIOLOGY 1. Make a power point presentation on any topic related to Diversity of Life

discussing any Kingdom, Phylum, Class or any other sub-group.

The presentations should be made using Microsoft PowerPoint.

It should include of text, graphics, animation etc.

Presentation should have 15-20 slides. (Last slide should be of

Bibliography /sources of information you used.)

The presentations time will be 5 minutes.

Presentation will be assessed on the basis of Content, Use of software

features and the effective use of Multimedia features, Aesthetics,

Communication skills.

2. Prepare a Detailed report on any one Biological Taxonomical Aid. (Use A4

sized sheets -white/ruled)

3. Practice Assignment sheets and complete NCERT book and Exemplar

questions of

Chapters 1-3 in registers

4. Learn the chapters taught for periodic test.

COMPUTER

SCIENCE

Revise all the chapters done in class and do the assignment given

PHYSICAL

EDUCATION

Prepare project file of the following topics:

1. Any 5 games including –

History of games

Ground specification

Rules of the games

Main competitions

2. Any 5 yoga asanas with their benefits

HISTORY Make a project on any one topic as per the list provided by CBSE under the

CBSE curriculum. The project should be made handwritten of around 15-20

pages with the help of colourful pictures , coloured pens and original

content. Students can use primary sources available in city archives,

Primary sources can also include newspaper cuttings, photographs, film

footage and recorded written/speeches. Secondary sources may also be used

after proper authentication.

Allocation of Marks (20)

The marks will be allocated under the following heads:

1 Project Synopsis 2 Marks

2 Timeline/explanation and interpretation/Map work 5Marks

3 Visual/overall presentation 4 Marks

4 Analysis/ Data/Statistical analysis 4 Marks

5 Bibliography 1 Mark

6 Viva 4 Marks

Total 20 Marks

Revise the chapters done so far and do the revision worksheet on separate

assignment sheets.

POLITICAL

SCIENCE Revise the chapters done so far and do the revision worksheet

Make a project on the following topic:

1. “The Kingdom of Freedom begins where the

Kingdom of Necessity ends”- Right to Freedom and role of Media.

2. The Right to Information – ensuring political accountability.

3. Citing relevant examples, discuss the relative importance of negative and

positive liberty in the Indian context.

GUIDELINES FOR THE PROJECTS: 1. It must be emphasized that the process of doing the project is as important as the

final project.

2. Once the project/projects are chosen, there should be a process of brainstorming

to make out a draft/structure for the project before embarking on research.

3. Internet sites could be referred, but care must be taken in selecting, using and

citing these sites.

4. Avoid plagiarism

5. Marks to be awarded for content and originality and not for decorative elements

and embellishments.

6. Projects must be the original work of the student.

1. Project may be supported by- Data, fact sheets, maps, articles, newspaper

clips

2. Maximum of 25-30 page projects

3. Research carried out for the project should be supported by thesis and anti-

thesis

4. Viva will be taken on the project (10 project+10 viva=20 practical marks)

HOLIDAY HOMEWORK ASSIGNMENT

CLASS XI ( 2019- 20 )

SUBJECT ACCOUNTANCY

1. Classify the following accounts under real, personal or nominal accounts

(i) Commission paid (ii) Sales Account (iii) Discount Allowed

(iv) Drawings (v) Outstanding Salary (vi) Leasehold Property

2. Name the Source document which is used in recording transactions in :-

(i) Sales Book (ii) Sales Return Book

(iii) Cash Book (iv) Purchases Book

3. Confidence and trust that the reported information is a reasonable representation of the actual

items and events, depicts which qualitative characteristic of accounting information? Name and

explain it.

Also explain any other two qualitative characteristics of the accounting information.

4. Due to a major loss in the current year, the accountant of the firm has not charged depreciation

on fixed tangible assets. Is his decision not to charge depreciation is correct? What will be the

impact of the decision on financial statements?

5. Shri Rakesh has started his business of retail trade on October 1, 2012. He has employed two

persons - one female accountant and another clerk, who is physically challenged to prepare books

of accounts. He desires that they should prepare first Profit and Loss Account and Balance Sheet

on March 31, 2013 and thereafter every year on March 31. You have to appraise his decision and

ascertain whether his decision is justified?

Which are the two concepts / principles of Accounting followed by him? Name and explain

them. Also mention any two values followed by Shri Rakesh.

6. A company lost vital machinery in an accident on 20th March, 2016 which will have adverse

impact on its production capacity. As a result, it is likely to lose business to its competitors. The

company has not disclosed this fact in its annual report for the year ended 31st March, 2016.

What is your opinion about this omission?

7. Explain the accounting concept which states business and proprietor are two different entities

.Explain its application, objective and value reflected in observing this principle.

8. What are the qualitative attributes that Accounting must possess to make accounting information

useful to all users?

9. Accounting provides information about the profitability and financial soundness of a concern. In

addition, it provides various other valuable information also. However, accounting has certain

limitations. Explain any such four limitations.

10. R Ltd. purchased 500 sq. mt. land for `1.5 crore to build a factory. At the end of the year, the

market value of land was `1.35 crore. R Ltd. treated `15 lac as loss and recorded the land at `1.35

crore. Is it a correct treatment? Give reason to support your answer.

11. A) Give an example of a transaction with the effect of Decrease in liability

increase in owner’s capital.

B) Calculate total equity if:-

Owner’s equity in the beginning is Rs. 1,20,000

Equity of creditors at the end is Rs. 1,00,000

Revenue during the period is Rs. 1,40,000

Expenses during the same period is Rs. 1,30,000

Also calculate amount of owner’s equity at the end.

12. Identify the nature of following Expenditure- Revenue/ Capital/ Deferred Revenue:

(i) `2,000 spent on the overhaul of machines purchased second hand.

(ii) Renovation of a cinema hall.

(iii) Advertising campaign to launch a new product.

(iv) Brokerage paid in connection with purchase of land.

13 Divij started business dealing in office furniture. He invested Rs.10,00,000 out of his fund and

also took a loan of Rs.5,00,000 from Bank. He purchased computer costing Rs.30,000 for his

office. He also bought goods of Rs.60,000 from Gaurav Furniture House and Rs.40,000 for cash.

He used goods of Rs.15,000 for furnishing his office. He paid rent of Rs.20,000 and salaries of

Rs.15,000. He sold goods costing Rs.30,000 to Aayush Traders at 40% profit and for cash of

Rs.40,000 at 30% profit during the year. He paid Rs.35,000 to Gaurav Furniture House and

received 10% cash discount. Calculate –

a. Total funds invested in business.

b. Purchases

c. Debtors

14. You are working in a company as a Chief Accountant. While preparing accounts of your

company, you are faced with a number of problems. These are summarized below:

(i) Although the sales have not yet actually taken place, some reliable customer of the

company has placed large orders from which company is expected to earn large profits.

The directors want to record this profit.

(ii) At present, market price of the fixed assets of the company is very high as compared to the

book value and directors are interested to show the fixed assets at their market price.

(iii)At the end of the accounting period, factory rent of the factory is outstanding for Rs.

10,000. There is confusion whether to record it or not.

(iv) The company has been sued for payment of damages worth Rs. 2,00,000. The case is

pending in the court. Whether this information be shown at the end of financial statements

or not?

Identify and the accounting concept that you would follow in dealing with the problems

stated above.

15. Sadhu has started his business of making clothes for college going girls on 1st April 2010. He

invested Rs. 20,00,000 to start his business. He installed Rs. 1, 50,000 for buying Sewing --

machines. He employed 1000 workers to whom he will pay Rs. 1200 per month salary and a

production manager in payroll of Rs. 20000 per month. Rent of that plant was Rs. 1000 per

month. He wants to get advertisement done at large scale. He has spent 1000000 on that with the

assumption that this expenditure will bring positive result in subsequent year also.

He got her plant and machinery insured with the premium of Rs. 50000 per quarter. He has also

purchased furniture for Rs. 20000, Air conditioners for Rs. 70000. On 31st march 2011 his rental

liability was Rs. 30000.

From the above, identify the types of expenses/ expenditures are involved.

Also calculate total amount of each type of expenditure also.

16. a) Recording the transactions and events correctly and preparing financial statements are the

only objectives of accounting. Do you agree ? Explain any three other objectives of accounting.

b) One of the imitation of Accounting states that resignation by a Marketing Manager will not be

recorded in the books of accounts. Identify the limitation mentioned in the statement.

Explain other two limitations of Accounting.

17. Identify the limitations of accounting highlighted in the below mentioned statements:-

(i)Accounts may be manipulated to conceal vital facts.

(ii)Estimations are done like provision for bad debts, useful life of an asset.

( iii)The amount of cash that a firm may realize by selling its assets is never known.

18. Show the effect of the following transactions on assets, capital and liabilities with the help of

Accounting Equation.

1. Ramesh started business with a capital of 1,00,000

2. Deposited 60,000 in Bank.

3. Purchased goods from Amit 30,000.

4. Sold goods costing 20,000 for 25,000 to Mohan out of which 7,000 received in cash.

5. Paid salary 5,000 but salary still outstanding 1,000.

6. Received commission 2,000 including 500 as advance.

7. Sold goods costing 5,000 at a loss of 500 in cash.

8. Received 17,400 from Mohan in full settlement of his account by cheque.

9 . Returned goods to Amit 2,000.

10. Issued a cheque of 27,200 to Amit in full settlement of his account.

19. Prove the accounting equation in the following transactions:-

a. Started business with cash `50,000.

b. Bought goods for cash `15,000 and on credit `12,000

c. Sold goods for cash costing `10,000 and on credit costing `7,000 both at a profit of 20 %

.

d. Paid to creditor in full settlement `11,450

e. Accrued interest `1,300

20.

Show the accounting equation on the basis of the following transactions: (6)

a) Manjeet started business with cash Rs. 11,50,000 and bank balance of Rs. 20,000.

b) Wages paid Rs. 4,000 and wages outstanding were Rs. 6,000.

c) Goods purchased for Rs. 80,000.

d) Computer purchased from Star Computers worth Rs. 30,000 and paid half the amount in cash.

e) Deposited Rs. 90,000 in bank.

f) Goods purchased from Shyam for Rs. 8,000 and made the payment by cheque.

g) Purchased a building for Rs. 6,00,000 and the payment was made by cash.

h) 1/2 of the stock available was sold to Rohan at a profit of 20% on cost.

GYAN DEVI SALWAN PUBLIC SCHOOL CLASS XI – ECONOMICS (2019-20)

ASSIGNMENT – HOLIDAY HOMEWORK (MIXED BAG)

1. How will ‘Grameen Kaushal Yojana’ affect the PPC?

2. How will ‘skill India campaign’ affect the PPC?

3. A country has two alternatives, 100 X+50 Y or 98 X+54 Y. What will be the MOC of producing X?

4. How will ‘Beti Padhao’ Beti Bachao Yojana’ affect the PPC of the economy. Also mention one

value linked to the scheme?

5. PPC can never be convex. Comment.

6. Is PPC affected when resources are inefficiently utilized?

7. How will Kinshi Bima Yojana affect the PPC?

8. How will huge spending by government on agriculture sector affect the PPC of the economy?

9. How will start up India, stand up India affect the PPC?

10. ‘Growth and Equity are conflicting goals in the economies like India’. Comment.

11. How will odd even policy by government affect the PPC?

12. How will Pradhan Mantri Sinchar Yojana affect the PPC?

13. MGNREGA is helping the PPC to shift rightward. Do you agree?

14. Will demonetisation have any affect on PPC?

15. How do you think GST will impact the PPC?

16. How will random inspection scheme by govt. affect the PPC?

17. How will PM Gram Parivahan Yojana which aims to create better transportation affect the PPC?

18. ‘Developed countries do not face any economic problem’. Do you agree?

19. No scarcity means no economic problem. Comment.

20. ‘Massive unemployment will shift the PPC left’ do you agree?

21. ‘Oil prices are raising globally.’ How will statistics help us to know how much oil should be

imported?

22. What is Statistics in plural sense?

23. What is the importance of Statistics in Economics?

24. You want to research on the popularity of vegetable Atta noodles among children. Design a

suitable questionnaire for conducting this investigation.

25. Calculate Marginal Opportunity Cost and comment on the shape of the PPC so drawn

Production of Pulses Production of Rice

0 800

10 700

20 500

30 270

40 0

26. State true or false with reason

a. Economy can operate outside PPC with given resources and technology

b. If there was no scarcity, there was no economic problem.

c. Inefficient use of resources shifts the PPC leftward.

d. A typical PPC is convex to the origin.

e. An economy always produces on the PPC.

27. A country’s resources are efficiently employed. The problem of scarcity exists. What advice will

be given to

raise the efficiency level of the human resource to fight scarcity?

28. Large number of technical training institutions have been started by the government. State its

effect on the PPC.

29. PM Modi has been travelling all around the world to attract the nations to invest in India. Due

to his efforts in the year 2016-17 India received a record Foreign Direct Investment. How will

this affect the PPC of the economy?

30. Production in an economy is below its potential due to unemployment, government starts

employment generation schemes. Explain its impact using PPC.

31. Does production takes place only on PPC. Explain using a diagram.

32. State true or false with reasons

a) Two PPCs can intersect.

b) Positive statements are idealistic statements.

c) Sugar industry is the study matter of micro economics

33. Prime Minister Uywala Yojana aims at distributing ₹8cr LPG connections to rural households in

India. How will this impact production possibility frontier of India?

34. Monisha spends 5 hours in studying every day. If she spends all her time in studying economics,

she is able to solve 40 questions. When she spends all her time in maths, she is able to solve 10

questions. Derive her table of time schedule of 5hrs if she decides to study both Economics and

Maths. Also calculate per hour sacrifice of economics to gain maths.

35. Why is statistics used in economics?

36. Mark the following statements as true or false. Give reasons

(i) Statistics can only deal with quantitative data.

(ii) Statistics solves economic problems.

(iii) Statistics is of no use to Economics without data.

37. ‘The Government and policy makers use statistical data to formulate suitable policies of

economic development’. Illustrate with two examples.

38. Statistical methods are no substitute for common sense. Comment

39. Mark the following statements as true or false. Give reasons

a)There are many sources of data .

b) Telephone survey is the most suitable method of collecting data, when the population is

literate and spread over a large area.

c) Data collected by investigator is called the secondary data .

d) There is a certain bias involved in the non-random selection of samples

40. In a village of 200 farms, a study was conducted to find the cropping pattern. Out of the 50

farms surveyed, 50% grew only wheat. Identify the population and the sample here.

CLASS XI – HISTORY

REVISION ASSIGNMENT

LESSON- 1 FROM THE BEGINNING OF TIME

1. Differentiate the term hominoid and hominid.

2. Hominids are divided into branches or genus. Name the various branches and analyse its

features.

3. ‘The development of spoken language has been seen as closely connected with art, since

both are media for communication. Evaluate.

4. How do the anthropologists feel that the information about living hunter and gatherers

can be used to understand past society? Discuss.

5. What was the importance of the discovery of fire to the early man?

6. Differentiate between Australopithecus and Homo.

7. Define the term Ethnography and Anthropology.

8. Humans and mammals such as monkeys and apes have certain similarities in behaviour

and anatomy. List these similarities in two columns under the headings of (a)

behavior(b) anatomy.

9. The shift from food gathering to food producing was a major turning point in human

history. Evaluate.

10. Tool making had played an important role in the life of early humans. On the basis of

this statement analyse the features of tool making of man.

LESSON-2 WRITING AND CITY LIFE

1. Write the meaning of Mesopotamia and its importance in world history.

2. Mesopotamia was a land with a lot to offer. Its location and natural resources encouraged

people to settle there. Explain the validity of the statement.

3. ‘Cities and towns are not just places with large populations. Evaluate the statement on the

light of significance of Urbanism in Mesopotamia.

4. After 2000 BCE the royal capital of Mari flourished. Comment.

5. Mesopotamian writing was a skilled craft. Do you agree with the statement? Substantiate.

6. The Mesopotamian temples were not only centres of worship but also centres of

economic activities. Examine the validity of the statement.

7. Mesopotamians valued city life. Many communities and cultures lived side by side. On

the basis of this statement analyse the features of the cities of Mesopotamia with

reference to Ur, Uruk and Mari.

8. ‘The people of Mesopotamia were indebted to the system of writing for their

achievements in the field of science’. Do you agree with the statement? Why? Elucidate.

9. Locate on the given outline map of world the following

Ur, Uruk, Babylon, Persian Gulf,Nineveh, Assur, Mari, Baghdad, Babylon

SUBJECT- BUSINESS STUDIES (054) HOLIDAYS HOME WORK CLASS –

XI

CHAPTER 1 (NATURE AND PURPOSE OF BUSINESS/EVOLUTION AND FUNDAMENTALS OF BUSINESS)

1. The auxiliaries to trade help to remove the various bottlenecks such as place, time, person, risk and

exchange. Explain how?

2. Anu and Renu are good friends. After completing a course in fashion designing, ten years back both of

them started their own separate outlets in Jaipur and Delhi respectively to earn their livelihood. Renu

buys readymade garments from various manufacturers and sells them in her store. However, Anu

designs her own range of clothing. She gets them made through her team of designers and sells them

directly under the brand name ‘Eleganza’. Although, both of them are making good returns on their on

their investments but in past they have also incurred huge losses due to changes in consumer tastes and

fashion. Also, despite being in business for such a long time they cannot say with certainty as to what

amount of profit will be earned by them in future. By quoting lines from paragraph identify various

features of business discussed above.

3. “Profit maximization cannot be the sole objective of the business.” Comment.

4. “An activity can be an economic activity in one situation and non-economic in other situation.” Do you

agree? Give an example to justify the given statement.

5. ‘Human beings are required to perform different types of activities to satisfy their needs.’ What are

these different types of activities?

6. Harshit runs a well-known departmental store in Delhi. He procures different kinds of products from

all over the country through railways, roadways and airways. He also owns a godown to hold the stocks.

He has also taken an insurance policy worth `10 crores for his business. Moreover, he has taken a loan of

` 2,00,000 from ICICI Bank in order to meet short term financial needs of his business. He has placed

information about his store on the hoardings, bill boards, etc. in order to popularize them. In the context

of above case: (i) What are auxiliaries to trade? (ii) Identify the different auxiliaries to trade that are

being used by Harshit in his business by quoting lines from the paragraph.

7. Identify and explain the following. (i) Type of industry in which the basic raw material is broken into

different part to produce finished goods. (ii) Type of risk that involves both possibility of profit as well as

loss. (iii) Type of industry in which finished product are combined to produce a new finished product. (iv)

Type of risk which involves only possibility of loss or no loss. (v) Type of industry involved in the activity

of rearing and breading of living organism.

CHAPTER2 (FORMS OF BUSINESS ORGANISATION)

1. “One man control is the best in the world, if that man is big enough to manage the whole show.”

Comment.

2. Jagat is running a grocery store under the name ‘Morning Needs’ in a local market. He takes direct

reward for his risk bearing. In the context of above case: (i) Identify and define the form of business

organization in which Jagat has promoted his business. (ii)State any two features of this form of business

organization mentioned above.

3. Explain ‘Mutual Agency’ as a feature of partnership.

4. If registration is optional, then why do partnership firms willing to go through this legal formality and

get themselves registered? Explain.

5. Identify and explain the following: (i) A person who lends his name and goodwill for the benefit of a

partnership firm. (ii) A person who contributes capital but does not take part in business of the firm. (iii)

A document containing terms and condition of partnership. (iv) A partnership setup for a specific

project. (v) A person who contributes capital, participates in the business but whose identity is not

disclosed to outsiders (vi) Document known as Doctrine of indoor management. (vii)Document known as

Doctrine of outdoor management. (viii) Type of partnership formed for a particular venture.

HOLIDAY HOMEWORK(2019-2020)

CLASS XI - MATHEMATICS

NOTE: Take a print out of the following pages and tick the correct option.

Q1. A set has n elements, then the number of elements in its power set is?

a) 2n b) 2n c) 0 d) 2n-1

Q2. Empty set is a?

a) Infinite set b) finite set c) Invalid set d) none of above

Q3. A — B will contain elements in?

a) A not in B b) B not in A c) Both A and B d) neither A nor B

Q4. Which of the following two sets are equal?

a) A = {1, 2} and B = {1}

b) A = {1, 2} and B = {1, 2, 3}

c) A = {1, 2, 3} and B = {2, 1, 3}

d) A = {1, 2, 4} and B = {1, 2, 3}

Q5. The members of the set S = {x | x is the square of an integer and x < 100} is ________________

a) {0, 2, 4, 5, 9, 58, 49, 56, 99, 12}

b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81}

c) {1, 4, 9, 16, 25, 36, 64, 81, 85, 99}

d) {0, 1, 4, 9, 16, 25, 36, 49, 64, 121}

Q6. If A and B are two sets, then A∩ (𝐴 ∪ 𝐵 ) equals

i) A (ii) B (iii) ∅ (iv) A∩B

Q7. If A = { 1,3,5,7,9,11,13,15,17} and B = { 2,4,6,8,….,18 ] and N is the set of natural numbers is the

universal set , then A' ∪ (( A ∪ 𝐵) ∩ 𝐵′) is

(i) ∅ (ii) N (iii) A (iv) B

Q8.If A and B be two sets and U be the universal set such that n(A) = 200 , n(B)=300 and n(U) = 700 and

n(A∩ B) = 100 . Find n(A' ∩ 𝐵′)

Q9. If U= {1,2,3,4,5,6,7,8,9} , A = { 1,2,3,4}, B = { 2,4,6,8 } and C = { 3,4,5,6}, then find (B-C)'

Q10. Two finite sets have m and n elements respectively. The total number of subsets of first set is 56

more than the total number of subsets of the second set. Find the value of m and n respectively.

Q11. Given that N= {1, 2, 3,…,100} then write the subset of N, whose elements are odd numbers.

Q12. The shaded area of figure is best described by

a) A‘ (Complement of A)

b) A U B -B

c) A ∩ B

d) B

Q13. The shaded area of figure is best described by

a) A‘ (Complement of A)

b) B – (A ∩ B) – (C ∩ B)

c) A ∩ C ∩ B

d) B’ (Complement of B)

Q14. The shaded area of figure is best described by

a) A‘ (Complement of A)

b) A U B – (A ∩ B)

c) A – B

d) B

Q15. Which of the following statement regarding sets is false

a) A ∩ A = A

b) A U A = A

c) A – (B ∩ C) = (A – B) U (A –C)

d) (A U B)’ =A’ U B’

Q16. If C’ U (D ∩ E’) is equivalent to

a) (C ∩ (D U E))’

b) (C ∩( D∩ E’))’

c) (C ∩( D’ U E))’

d) (C U ( D ∩ E’)’

Q17. If set C is {1, 2, 3, 4} and C – D = Φ then set D can be

a) {1, 2, 4, 5}

b) {1, 2, 3}

c) {1, 2, 3, 4, 5}

d) None of the mentioned

Q18. Let Universal set U is {1, 2, 3, 4, 5, 6, 7, 8} ,(Complement of A) A’ is {2, 5, 6, 7}, A ∩ B is {1, 3, 4} then

the set B’ will surely have of which of the element

a) 8

b) 7

c) 1

d) 3

Q19. If in sets A, B, C, the set B ∩ C consists of 8 elements, set A ∩ B consists of 7 elements and set C ∩ A

consists of 7 elements then the minimum element in set A U B U C will be

a) 8

b) 14

c) 22

d) 15

Q20. If C’ U (D ∩ E’) is equivalent to

a) (C ∩ (D U E))’

b) (C ∩( D∩ E’))’

c) (C ∩( D’ U E))’

d) (C U ( D ∩ E’)’

Q21. In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then n(B)=? .

a) 35

b) 20

c) 30

d)10

Q22. Which sets are not empty?

a) {x: x is a even prime greater than 3}

b) {x : x is a multiple of 2 and is odd}

c) {x: x is an even number and x+3 is even}

d) { x: x is a prime number less than 5 and is odd}

Q23. If A has 4 elements B has 8 elements then the minimum and maximum number of elements in A U

B are respectively

a) 4, 8

b) 8, 12

c) 4, 12

d) None of the mentioned

Q24. Write set {1, 5, 15, 25,…} in set-builder form :

a) {x: either x=1 or x=5n, where n is a real number}

b) {x: either x=1 or x=5n, where n is a integer}

c) {x: either x=1 or x=5n, where n is an odd natural number}

d) {x: x=5n, where n is a natural number}

Q25. A = {∅,{∅},2,{2,∅},3} ,which of the following is true.

a) {{∅,{∅}} ∈ A

b) {2} ∈ A

c) ∅ ⊂ A

d) 3 ⊂ A

Q26. If 2 sin θ− cos θ

cos θ + sin θ = 1, then the value of cot θ is

a) 1/2 b) 1/3 c) 3 d) 2

Q27. If cot (π

2− θ ) = √3 , then what is the value of cos θ?

a) 0 b) 1 √2⁄ c) 1/2 d) 1

Q28. If tan4 θ + tan2 θ = 1, then the value of cos4 θ + cos2 θ is

a) 8 b) 10 c) 1 d) 2

Q29. The value of sin(45° + θ) - cos(45° − θ) is

a) 1 b) 0 c) 2 cos θ d) 2 sin θ

Q30. If tan (x + y) tan(x – y) = 1, then the value of tan x is

a) √3 b) 1 c) 1/2 d) 1/√3

Q31. Minimum value of 12 cos2 α + 3 sec2 α is

a) 14 b) 10 c) 11 d) 12

Q32. 1 - sin2 A

1+cos A +

1+cos A

sin A -

sin A

1−cos A = ?

a) Cos A b) 0 c) 1 d) sin A

Q33. If tan θ – cot θ = a and cos θ – sin θ = b, then the value of (a2 + 4)(b2 − 1) is

a) 4 b) 1 c) 2 d) 3

Q34. If sec θ + tan θ = √3, then the positive value of sin θ is

a) 0 b) 1/2 c) √3 2⁄ d) 1

Q35. If 8 sin x = 4 + cos x, the values of sin x are

a) 3

5 ,

−5

13 b) −

3

5 ,

5

13 c) −

3

5 ,

−5

13 d)

3

5 ,

5

13

Q36. If cot (π

2−

θ

2) = √3 , then the value of sin θ - cos θ = ?

a) 1/2 b) √3 2⁄ c) √3 +1

2 d)

√3 − 1

2

Q37. If cos θ + sec θ = 2, then the value of cos68 θ + sec68 θ equal to

a) 1 b) 2 c) 3 d) 68

Q38. If sin 3A = cos (A - 26°) , where 3A is an acute angle then the value of A is

a) 29° b) 26° c) 23° d) 28°

Q39. If sin 5θ = cos 20° (0° < θ < 90° ) then the value of θ is

a) 4° b) 22° c) 10° d) 14°

Q40. If tan θ – cot θ = 0, and θ is a positive acute angle, then the value of tan(θ +15°)

tan(θ−15°)

a) 1 √3⁄ b) √3 c) 3 d) 1

Q41. A relation R is defined in the set of integers I as follows (x, y) ∈ R if x2 + y2 = 9 which of

the following is false?

a) R = { (0, 3), (0, -3), (3, 0), (-3, 0) }

b) Domain of R = {-3, 0, 3}

c) Range of R = {-3, 0, 3}

d) None of the above

Q42. Let R be a relation in N defined by R = { (1 + x, 1 + x2) / x ≤ 5, x ∈ N } which of the

following is false?

a) R = { (2, 2), (3, 5), (4, 10), (5, 17), (6, 25) }

b) Domain of R = {2, 3, 4, 5, 6 }

c) Range of R = {2, 5, 10, 17, 26}

d) (b) and (c) are true

Q43. Let R be a relation on N defined by R = { (x, y)/ x + 2y = 8 }, the domain of R is

a) {2, 4, 8} b) {2, 4, 6, 8} c) {2, 4, 6} d) {1, 2, 3, 4}

Q44. The relation R defined on the set A = {1, 2, 3, 4, 5} by R { (x, y) / |x2 − y2| < 16 } is

given by

a) {(1, 1), (2, 1), (3, 1), (4, 1), (2, 3)}

b) {(2, 2), (3, 2), (4, 2), (2, 4)}

c) {(3, 3), (4, 3), (5, 4), (3, 4)}

d) None of these

Q45. R = {(x, y)/x, y ∈ I, x2 + y2 ≤ 4} is a relation in I then domain of R is

a) {0, 1, 2} b) {-2, -1, 0} c) {-2, -1, 0, 1, 2} d) {-2, -1}

Q46. Which of the following relations is a function?

A) {(1, 2), (-1, 3), (-1, 8)}

B) {(3,7), (3, 6), (5, 3)}

C) {(0, 4), (5, 6), (5, 8)}

D) {(1, 2), (2, 2), (3, 4)}

Q47. The number of elements in the Power set P(S) of the set S = [ [ Φ] , 1, [ 2, 3 ]] is

a) 2 b) 4 c) 6 d) 8

Q48. In a beauty contest, half the number of experts voted for Mr. A and two thirds voted for Mr.

B. 10 voted for both and 6 did not vote for either. How many experts were there in all ?

a) 18 b) 36 c) 24 d) 44

Q49. If f(x) = ax + b, where a and b are integers, f(-1) = -5 and f(3) = 3, then a and b are

a) a = -3, b = -1 b) a = 2, b = -3 c) a = 0, b = 2 d) a = 2, b = 3

Q50. The domain and range of the real function f defined by f(x) = √x − 1 is given by

a) domain = (1, infinity) , range = (0, infinity)

b) domain = [1, infinity), range = (0, infinity)

c) domain = [1, infinity) , range [0, infinity)

d) domain = ⌈1, infinity) , range = ⌈0, infinity)

CHEMISTRY

ASSIGNMENT

CLASS - XI

TOPIC – SOME BASIC CONCEPTS OF CHEMISTRY

Q1. Express the following numbers to three significant figures:

(i) 6.023 X 1023 (ii) 6000 (iii) 32.362400 (iv) 5.6034

Q2. Express the following numbers in exponential notations to three significant figures:

(i) 900035 (ii) 0.000002136 (iii) 406721 (iv) 0.000001

Q3. (a) Calculate the gram molecular mass of sugar having molecular formula C12H22O11.

(b) Calculate: (i) The mass of 0.5 gram molecule of sugar.

(ii) Gram molecule of sugar in 547.2 gram.

Q4. Chlorophyll, the green colouring matter of plants contains 2.68% of magnesium by weight. Calculate the

number of magnesium atoms in 2.00 g of chlorophyll (at. Mass of Mg = 24g).

Q5. 35Cl and 37Cl are the naturally occurring isotopes of chlorine. What percentage distribution accounts for the

atomic mass 35.45u ?

Q6. An organic compound on analysis gave the following percentage composition: C = 57.8%, H = 3.6% and the

rest is oxygen. The vapour density of the compound was found to be 83. Find out the molecular formula of

the compound.

Q7. A crystalline salt on being rendered anhydrous loses 45.6% of its weight. The composition of anhydrous salt is:

Al = 10.5%, K = 15.1%, S = 24.8% and O = 49.6%. Calculate the formula of anhydrous salt and crystalline salt

(At. Mass of Al = 27, K = 39, S = 32, O = 16).

Q8. Oxygen is prepared by the catalytic decomposition of potassium chlorate (KClO3). Decomposition of potassium

chlorate gives potassium chloride (KCl) and oxygen (O2). If 2.4 mol of oxygen is needed for an experiment, how

many grams of potassium chlorate must be decomposed ?

Q9. A solution is prepared by adding 60 g of methyl alcohol to 120 g of water. Calculate the mole fraction of

methanol and water.

Q10. Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g mL-1 and

the mass percent of nitric acid in it being 69% .

Q11. A solution of glucose in water is labelled as 10% (w/w). The density of the solution is 1.20 g mL-1. Calculate

(i) Molality (ii) Molarity, and (iii) Mole fraction of each component in solution.

Q12. Calcium carbonate reacts with aqueous HCl to give CaCl2 and CO2 according to the reaction given below:

CaCO3 (s) + 2HCl (aq) ---→ CaCl2 (aq) + CO2 (g) + H2O (l)

What mass of CaCl2 will be formed when 250 mL of 0.76 M HCl react with 1000 g of CaCO3? Name the limiting reagent. Calculate the number of moles of CaCl2 formed in the reaction.

Q13. Calculate the amount of KClO3 needed to supply sufficient oxygen for burning 112 L of CO gas at N.T.P.

Q14. How many moles of methane are required to produce 22 g of CO2 after combustion?

Q15. Calculate the molality of 93% H2SO4 (w/v). The density of the solution is 1.84g/ml.

Gyan Devi Salwan Public School Assignment

Subject: Computer science (XI)

1. What type of services are provided by an operating system?

2. Explain briefly the functions performed by an operating system?

3. Explain briefly the functions performed by an operating system as

processor manager.

4. Explain the working of operating system as a resource manager.

5. Explain the virtual storage technique describing both the approaches.

6. Convert the following binary numbers to decimal:

(a) 1010 (b) 111010 (c) 101011111

(d)1100110101 (e) 11001010111

7. Convert the following binary numbers to decimal:

(a) 1100 (b)10010101 (c) 11011100 (d)1100110101 (e) 11001010111

8. Convert the following decimal numbers to binary:

(a) 23 (b) 100 (c) 145 d) 121 (e) 161

9. Convert the following decimal numbers to binary:

(a) 19 (b) 121 (c) 161

10. Convert the following hexadecimal numbers to binary:

(a) A6 (b) A07 (c) 7AB4

(d) B56 (e)FACE (f) 123ABC

11. Convert the following hexadecimal numbers to binary:

(a) BE (b) BC9 (c) 9BC8

12. Convert the following binary numbers to hexadecimal:

(a) 10011011101 (b)1111011101011011 (c) 11010111010111

13. List the main components of the computer system.

14. What is RAM?

15. What do you understand by IPO cycle?

16. What role does the input unit play in a computer?

17. Define each of the following: (a) nibble (b) byte (c) kilobyte

(d) megabyte (e) gigabyte.

18. Distinguish between internal and external memory.

19. Define the following terms: (i) cylinder (ii) tracks (iii) sectors.

20. What are RAM and ROM? How are they alike? How are they different?

21. What are EEROM, PROM, and EPROM?

22. Distinguish between:

(a) RAM and ROM (b) Internal and external memory

(c) Main memory and Cache memory.

CLASS 11 POLITICAL SCIENCE

ASSIGNMENT 1

Constitution – Why and How?

1. How does a constitution allow for minimal coordination amongst members of a

society?

2. Explain the statement, “Specification of decision making powers is done by the

Constitution.”

3. Explain the most common way of limiting the powers of the government by the

constitution.

4. Which constitutional measures enable the Indian government to fulfil the

aspirations of society?

5. How does a constitution express the fundamental identity of people?

6. Which body created the Indian constitution? How much time was taken to create

it?

7. With the help of system of checks and balances, explain that Indian institutional

design is a balanced one.

8. Explain the statement, “Indian constitution is neither rigid nor flexible.”

9. Why is the authority of the constitution considered higher than that of the

Parliament?

10. Support the following conclusions with the help of examples:

a) The Indian constitution was made by the credible leaders who commanded

people’s respect.

b) The Indian constitution has succeeded in giving us a framework of democratic

government.

ASSIGNMENT 2

(1 Mark Question)

Q.1. What is meant by term ‘Constitution’?

Q.2. What is meant by the term ‘Secular’?

Q.3. Write any one main feature of the Indian Constitution.

(2 Marks Question)

Q.1. What is meant by Preamble?

Q.2. Define the term ‘Fraternity’.

Q.3. What is meant by Directive Principles of State Policy?

(4 Marks Question)

Q.1. What is the need and importance of a Constitution?

Q.2. Mention any four features of the Indian Constitution.

Q.3. Mention any four fundamental duties of the Indian citizen.

(5 Marks Question)

Q.1. Read the passage and answer the question:

The Constitution Assembly spent a lot of time on evolving the right balance

among the various institutions like the executive, the legislature and the judiciary.

While the evolving the most balanced governmental arrangements, the makers of

our Constitution did not hesitate to learn from experiments and experiences of

other countries. The framers of our Constitution were not averse to borrowing from

other Constitution traditions.

Q. Mention the various provisions which the Indian Constitution has borrowed

from the rest of the world constitutions.

(6 Marks Question)

Q.1. Mention the main sources of the Indian Constitution. Describe in brief the

provisions which have been taken from these sources.

Q.2. Describe the composition and working of the Constituent Assembly.

Q.3. How is India a sovereign, Democratic, Republic? Explain.

Let’s ponder:

1. What do people do if they find out that their constitution is not just? What

happen to people when a constitution exists only on paper?

2. Is Indian Constitution a ‘bag of borrowings’? Why could we not have a

constitution that does not borrow anything from anywhere else?

ASSIGNMENT BIOLOGY XI

Chapters 1-3

Very Short Answer Questions (1 mark each)

1. Define species.

2. What is systematics ?

3. Give the names of two famous botanical gardens.

4. Nostoc and Anabaena have specialised cells called heterocyst. What is the function of these

cells?

5. Which group comprises of single celled eukaryotes only?

6. Which organisms are the chief producers in oceans?

7. Name the fungus which causes disease in wheat (i) rust (ii) Smut.

8. Which Ascomycetes has been used extensively in biochemical and genetic work?

9. What is a pyrenoid body?

10. Define gemma.

11. Which group of plants is regarded as first terrestrial plants? Why?

12. Which organism is regarded as one of the tallest tree species?

13. The gametes and spores of phaeophyceae have a distinct morphology. Give its name.

14. Which substance has structural similarity to floridean starch ?

15. Name the organisms which exhibit heterospory can exhibit seed habit.

Short Answer Questions-I (2 marks each)

1. What is the basis of modern taxonomical studies?

2. Why growth and reproduction cannot be taken as defining property of all living organisms?

3. How is a taxon (pl. taxa) defined?

4. How are bacteria classified on basis of their shapes ?

5. What is the mode of reproduction in bacteria?

6. Why are red tides caused and why are they harmful?

7. Viruses and viroids differ in structure and the diseases they cause. How?

8. Which class of kingdom fungi has both unicellular as well as multicellular members?

9. When is a fungus called coprophilous ?

10. Sphagnum has a lot of economic importance. Justify.

11. Gymnosperms can show polyembryony. Why do you think so?

12. How is leafy stage formed in mosses? How is it different from protonema ?

Short Answer Questions-II (3 marks each)

1. What is the difference between Botanical Garden and Herbarium?

2. Keys are analytical in nature and are helpful in identification and classification of organisms.

How?

3. Define: (a) Genus (b) Family (c) Order

4. Who gave five kingdom classification? What was the criterion used by him?

5. What are the steps in the sexual cycle in kingdom fungi?

6. Some symbiotic organisms are very good pollution indicators and composed of a

chlorophyllous and a non-chlorophyllous member. Describe them.

7. The leaves in gymnosperms are adapted to withstand xerophytic conditions. Justify.

8. The gametophytes of bryophytes and pteridophytes are different from that of gymnosperms.

How?

9. Roots in some gymnosperms have fungal or algal association. Give examples, their names and

role in the plants.

Long Answer Questions (5 marks each)

1. What are the universal rules of nomenclature? What does ‘Linn.’ refer to in Mangifera indica

Linn. ?

2. Illustrate taxonomical hierarchy with suitable examples from plant and animal species.

3. Some primitive relatives of animals live as predators or parasites and are divided into four

major groups. Elaborate.

4. Differentiate between various classes of kingdom Fungi on the basis of their

(i) Mycelium, (ii) Types of spores and (iii) Type of fruiting body.

Also give two examples for each class.

5. Pteridophytes and Gymnosperms have haplo-diplontic life cycle. Explain.

6. Draw the life cycle of an angiosperm along with a brief note on double fertilisation.

Ref.- edudel.nic.in