Kendriyavidyalaya No-2 Salt Lake, Kolkata

KendriyaVidyalaya No-2 Salt Lake, Kolkata

Summer Vacation Holiday Homework

Session- 2015-16

Kindly Press Ctrl+Click on respective class name to move directly on the respective class FOR SUMMER VACATION HOMEWORK

Class Name

XII A

XII B

XII C

XII D

Home Work Class XII A

TERM-I (COMMON ASSIGNMENT ) ,CLASS-XII , SUBJECT-MATHEMATICS

1.What is the range of the function f(x)=

2.If f:R R be defined by f(x) = ,then find (fof)(x) .

3.Show that the relation S in the set A = { X є Z: 0 ≤ X ≤12 } , given by S = { (a,b) : a,b є Z ,|a – b | is divisible by 4 } is an equivalence relation .

4.Let * be a binary operation on Q ,defined by a*b = .Show that * is commutative as well as associative . Also find the identity element ,if it exists .

5.Let f : R R ,be defined as f(x) = 10x + 7 . Find the function g :R R ,such that gof =fog = .

6. Let A = R - {3 } and B = R - {1 } .Consider the function f : A B , defined by f(x) = . Show that f is one-one and onto and hence find .

7.Show that f : N N ,given by f(x) = x+1,if x is odd , is both one – one and onto .

X – 1,if x is even

8.Find the value of + (sin( )) .

9.Simplify ( +sinx) , x є [-

10. Find x , if ( ) + ( ) =

11.Prove that ( ) + ( ) = ( )

12.Prove that ( ) + ( ) + ( ) =

13.If x + y + z = π, then prove that + + +2xyz = 1

14. Prove that 1 + 2 + 3 = .

15. Prove that sin (2 ) + cos (2√2 ) =

16. Prove that ( ) +( ) + ( ) =

17.Solve for x : ( ) + ( ) = , 0≤ x ≤ 1.

18. Solve for x: (x – 1) + x + (x + 1) = (3x)

Class XII A(Computer Science):

Assignment

Chapter : C++ revision tour

Very short/short answer question (Page no:89)- Question no-19 to 40

Chapter: Class and object:

Unsolved Problem: (Page no- 194)Question no 1 to 4

Long answer question: (Page no-199) Question no-2 to 8

Project

(Any one project in a group of 2 or alone)

Library Management System
Banking System
Hospital Management System
Railway Reservation System
Inventory control program
Examination System
Quiz
Game
Hotel Management
Any subsystem of a System Software or Tool
Any Scientific or a fairly complex algorithmic situation
Transport query system
Tutor, Computer Aided Learning Systems

( Or any other domains on the similar lines)

HOLIDAY HOME WORK, Chemistry

CLASS:-12A, 2015

Q1.] Define the term solution. How many types of solution are formed? Write briefly about each type with example.

Q2.] Give an example of a solid solution in which the solute is a gas.

Q3.] Define the following terms:

Mole fraction
Molality
Molarity
Mass percentage

Q4.] State Henry’s law and mention its two important applications.

Q5.] What is Raoult’s law? State the factor responsible for deviations from this law. Illustrate deviations with suitable examples.

Q6.] What are ideal and non-ideal solutions? Give reasons for the formation of such solution. Give one example in each case.

Q7.] Define the term osmosis and osmotic pressure. Is the osmotic pressure of solution a colligative property? Explain.

Q8.] Calculate the molarity of a solution containing 5g of NaOH in 450ml solution.

Q9.] Calculate the amount of benzoic acid (C6 H5 COOH) required for preparing 250ml of 0.15M solution in methanol.

Q10.] A solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.

1.} Study of oxalate ion content in Guava Fruit

2.} Preparation of Soyabean Milk and its comparison with Natural Milk

3.} Study of Adultrants in Food-Stuffs

4.} Dyeing of Fabrics

5.} Study of constituents of an Alloy

6.} Study of the effect of Metal Coupling on The Rusting of Iron

Subject: English

Find at least 6-10 classified advertisements of different categories from the Newspaper. Paste the advertisements on the left side of the Holiday Homework copy. Then in your own words write down the same advertisements on the right side of the copy.

2. As a librarian of DAV school Delhi, write a letter to the Oxford book sellers, Agra placing an order for books, [mention at least four titles] to be supplied immediately.

Name of Book / Name of Author / Publication House / No. of Copies
1.
2.
3.
4.

3. The harmful Effects of Cigarette Smoking is known to all. It is prevented by the government of India by taking a few steps. A statutory warning on cigarette packs is a mandate from the Government side. In spite of that the cigarette sale is increasing day by day. Write a letter to the Editor giving your own views about the factors responsible for the increase in sale every day.

Optional

Book Review on The Invisible ManbyH.G Wells

i) Title

ii)Author

iii) Publishing Company

iv) Price

iv) No. of Pages

v) Hard bound/ Paper back

vi) Summary &Characterisation

vii) Why do you like or dislike the book

Home Work Class XII B

Investigatory Project of 2015-16 (AISSCE)
Class- XII B, Biology

ROLL NO. / NAME / TOPIC
1 / RituparnaNayak / Preference of colour according to age group.
2 / PradiptaGhosh / Toxicity of Nicotine and its effect
3 / NehaKumari / Inheritence / Occurrence of spectacles in Children
4 / Saloni Roy / Reasons for hair fall
5 / KaveriSaha / Movement of tectonic plates through ages
6 / Arya Sharma / Study of Tsunami from last 25 years
7 / RachnaGopi / Lifestyle diseases and their reversal
8 / SanjulaBiswas / Benefits of exercise on our health
9 / SahilPurkait / Adulteration of food items
10 / Robin Singh / Effect of Music before sleeping
11 / SudeepJha / Inheritance and causes of hypertension
12 / C.S. Samrat / Effects of Yoga for different problems
13 / Ashirwad Das / Switch to Stevia : A Boon for Diabetics
14 / Pritam Das / Types of dreams and their interpretation
15 / Shubhojit Gupta / Onset and inheritance of diabetes
16 / SimranSahu
17 / ShibaniMandi / Impact of use of Internet in students
18 / Gargi Dixit / Sub-Disciplines of Biology and related professions
19 / M. Vyshnavi / Onset / Causes of Early puberty
20 / PranaliBorkar / Studying Science by force or by choice
21 / Sneha Mathew / Sleeping habit in human beings
22 / TohfahNazir / Complications of pregnancies.
23 / SauravPradhan / Effects of mobile phones and computers
24 / Soumyadeepta Roy / Wild heritage of Sunderban Tigers
25 / BhargavChakraborty / Significance of medicinal plants in human being
26 / DevaleenaRana / Age vs learning ability.
27
28 / SnigdhaDey / Occurrence of Diabetes mellitus
29
30 / SrustiSisugoswami / Life history of gangetic Dolphins
31 / Dharitree Swain / Effects of Rice eating habits on human
32 / MrittunjoyAdhikari / Harmful effects of Junk food

Home work – List of practicals have been given to you. Write the theory portion in your practical record files and draw the labelled diagrams wherever indicated and as explained in the class.

Assignment- Revise the 5 marks questions of last 7 years upto the portion completed in class.

TERM-I (COMMON ASSIGNMENT ) ,CLASS-XII , SUBJECT-MATHEMATICS

1.What is the range of the function f(x)=

2.If f:R R be defined by f(x) = ,then find (fof)(x) .

3.Show that the relation S in the set A = { X є Z: 0 ≤ X ≤12 } , given by S = { (a,b) : a,b є Z ,|a – b | is divisible by 4 } is an equivalence relation .

4.Let * be a binary operation on Q ,defined by a*b = .Show that * is commutative as well as associative . Also find the identity element ,if it exists .

5.Let f : R R ,be defined as f(x) = 10x + 7 . Find the function g :R R ,such that gof =fog = .

6. Let A = R - {3 } and B = R - {1 } .Consider the function f : A B , defined by f(x) = . Show that f is one-one and onto and hence find .

7.Show that f : N N ,given by f(x) = x+1,if x is odd , is both one – one and onto .

X – 1,if x is even

8.Find the value of + (sin( )) .

9.Simplify ( +sinx) , x є [-

10. Find x , if ( ) + ( ) =

11.Prove that ( ) + ( ) = ( )

12.Prove that ( ) + ( ) + ( ) =

13.If x + y + z = π, then prove that + + +2xyz = 1

14. Prove that 1 + 2 + 3 = .

15. Prove that sin (2 ) + cos (2√2 ) =

16. Prove that ( ) +( ) + ( ) =

17.Solve for x : ( ) + ( ) = , 0≤ x ≤ 1.

18. Solve for x: (x – 1) + x + (x + 1) = (3x)

Subject: English

2. As a librarian of DAV school Delhi, write a letter to the Oxford book sellers, Agra placing an order for books, [mention at least four titles] to be supplied immediately.

Name of Book / Name of Author / Publication House / No. of Copies
1.
2.
3.
4.

Optional

Book Review on The Invisible ManbyH.G Wells

i) Title

ii)Author

iii) Publishing Company

iv) Price

iv) No. of Pages

v) Hard bound/ Paper back

vi) Summary &Characterisation

vii) Why do you like or dislike the book

कक्षा बारहवीं का गृह कार्य, Hindi

१. यशोधर बाबू किन जीवन -मूल्यों को थामे बैठे हैं ? नई पीढ़ी उन्हें प्रासंगिक क्यों नहीं मानती ? 5

२. बाज़ारुपन किसे कहते हैं ? बाज़ार के जादू से मनुष्य पर क्या प्रभाव पढ़ता है ? 3

३. 'मन के हारे हार है मन के जीते जीत' अथवा 'क्या नहीं कर सकती नारी ' पर एक निबंध लिखें । 5

४. किसी दैनिक पत्र के संपादक को एक पत्र लिखिए , जिसमें बिजली के संकट से उत्पन्न कठिनाइयों का संक्षेप में वर्णन किया गया हो । 5

Home Work Class XII C

Subject - ACCOUNTANCY

Q1. X, Y and Z are partners in a firm ,their capital as on April 1 ,2013 were Rs.5,00,000, Rs.4,00,000 and Rs.3,00,000 respectively. On July 1, 2013 they individual further capitals of Rs.1,00,000, Rs. 80,000 and Rs.50,000 respectively. On February 1, 2014. Interest is to be allowed @ 8% p.a on the capitals. Compute interest on capitals for the year ending March 31,2014.

Q2. On March 31 ,2006 after the close of account ,the capitals of Mountain ,Hill and Rock stood in the books of the firm at Rs.4,00,000, Rs.3,00,000 and Rs. 2,00,000 respectively.Subsequently, it was discovered that the interest on capital @ 10% p.a has been omitted . The profit for the year amounted to Rs.1,50,000 and the partner’s drawing has been Mountain: Rs.20,000; Hill: Rs.15,000 and Rock Rs.10,000.

Q3. X and Y are partner’s with capitals of Rs.1,00,000 and Rs.80,000 respectively on 1 April,2013 and their profit sharing ratio is 2:1. Interest on capital is agreed @12% p.a Y is allowed an annual salary of Rs.6,000. The profit for the year ended 31 March ,2014 amounted to Rs.50,000. Manager is entitled to a commission of 10% of the profits.Prepare Profit and Loss Appropriation A/C and Capital A/C.

Q4. Gupta is a partner in a firm. He drew regularly Rs.800 at the beginning of every month for the six months ending 20 September,2013. Calculate interest on drawing at 15% p.a.

Q5. On 1 April, 1996 X,Y and Z started a business in partnership . X contributes Rs.90,000 at first but withdraws Rs.30,000 at the end of six months. Y introduces Rs.75,000 at first and increase it to Rs.90,000 at the end of four months , but withdraws Rs.30,000 at the end of eight months . Z brings in Rs.75,000 at first but increases it by Rs.60,000 at the end of seven months.

During the year ended 31 March, 1997, they make a net profit of Rs.42,000. Show how the partners should divide this amount on the basis of effective capital employed by each partner.

CLASS-XII-C BUSINESS STUDIES

Management(NATURE AND SIGNIFICANCE) of any company or organisation or sanghathan.

(Like; TATA GROUP ,TATA MOTORS , RELIANCE CO. ,INFOSYS, WIPRO)

कक्षा बारहवीं का गृह कार्य, Hindi

२. बाज़ारुपन किसे कहते हैं ? बाज़ार के जादू से मनुष्य पर क्या प्रभाव पढ़ता है ? 3

CLASS XII C sub: english

ANSWER THE FOLLOWING QUESTIONS-

A)Who is Saheb? What isironical about his name? How did he and his friends raise the act of garbagepicking to the proportions of fine art?

B)Why was Saheb unhappy working at the teastall?

C)Why does the author feel cheered when he looks into Mukesh’s eyes?

D)Significance of the lines “a promise that was not meant”.

E)Explain the statement- “For Saheb even shoes with a hole is a dream come true”.

F)What is the significance of the title “ Lost spring”.

G)Why cant the bangle makers break their “ God given lineage “ and “karam, their destiny”?

H)Why should child labour be eliminated and how?

I)Does Savita know the significance of the bangles she helps to make?

ECONOMICS

CLASS XII C

Group- wise different sets of questions are assigned.

LEADER

XII C XII D

GROUP –ASnehaChakrabortyAnumitraChatterjee

GROUP –BAmit Kumar ChowdharyShreya Sharma

GROUP –CTamannaGargShalini Panda

GROUP –DRichikaBiswasRamyani Das

GROUP –ESoummyajitGuhaMoumitaDutta

GROUP –FB BhargavaRobin Singh

GROUP –GEvangeline JebarajMoumitaDutta

GROUP –HSoumi ChandraRamyani Das

GROUP –ISanchitaBanerjeeShalini Panda

Subject Teacher: IndraniSengupta

GROUP –A

1 Mark Questions

What is an Economy?
What is meant by scarcity of resources?
What is meant by economising of resources?
Can there be an Economy without an economic problem?
Define PPC.
Define MOC/MRT.
Why is a PPC concave?
What does a movement along the PPC indicate?
What factors lead to a rightward shift of the PPC?

10. What does a point below PPC indicate?

GROUP –B

3 marks Questions

Distinguish between Microeconomics and Macroeconomics. Give example.
What are the three central problems of an Economy?
Explain the central problem of ‘What to produce’ with the help of an example.
Explain the central problem of ‘How to produce’ with the help of example.
Explain the central problem of ‘For whom to produce’ with the help of example.

GROUP –C

3 marks Questions

Explain the concept of PPC with the help of a diagram.

Why is a PPC concave?

Why is PPC downward sloping from left to right?
Draw a PPC and show the following situations.

i) Full employment of resources.

ii) Underutilisation of resources.

iii) Growth of resources.

Explain how scarcity and choice go together.

Why does economic problem arise?

GROUP –D

1 Mark Questions

Define utility.
Define total utility.
Define marginal utility.
State the law of diminishing marginal utility.
State the law of equi-marginal utility.
What happens to total utility if marginal utility is zero?
State the conditions for consumer’s equilibrium given by utility approach in single commodity.
State the conditions for consumer’s equilibrium given by utility approach in case of two- commodity.

GROUP E

3-4 Mark Questions

Explain the relationship between total utility and marginal utility with the help of a schedule and diagram.
Define marginal utility. State the law of diminishing marginal utility
Explain the properties of IC.

GROUP F

4-6 Mark Questions

Explain the consumer’s equilibrium in case of a single commodity with the help of utility schedule.
Explain the consumer’s equilibrium in case of two commodities with the help of utility schedule.

GROUP G

3 Mark Questions

‘An economy always produces on but not inside PPC.’Explain.
‘Massive unemployment shifts the PPC to left.’ Justify
‘An economy cannot operate on any point outside the PPC.’Explain

GROUP H

1 Mark Questions

Define IC.
What do you mean by budget line?
What do you mean by indifference map?
Define MRS.
What do you mean by monotonic preferences?
State two conditions of consumer’s equilibrium attained through IC.

GROUP I

3 Mark Questions

Reasons based questions

Write TrueOrFalse with reason.

1. Economic Problem and scarcity of resources are not related to each other.

2. With fuller utilization of resources, an economy can shift to point beyond PPC.

3. TU is maximum , when MU starts declining.

4. If MUx/Px › MUy/ Py, the consumer should buy more of good Y and less of good X?

TERM-I (COMMON ASSIGNMENT ) ,CLASS-XII , SUBJECT-MATHEMATICS

1.What is the range of the function f(x)=

2.If f:R R be defined by f(x) = ,then find (fof)(x) .

3.Show that the relation S in the set A = { X є Z: 0 ≤ X ≤12 } , given by S = { (a,b) : a,b є Z ,|a – b | is divisible by 4 } is an equivalence relation .

4.Let * be a binary operation on Q ,defined by a*b = .Show that * is commutative as well as associative . Also find the identity element ,if it exists .

5.Let f : R R ,be defined as f(x) = 10x + 7 . Find the function g :R R ,such that gof =fog = .

6. Let A = R - {3 } and B = R - {1 } .Consider the function f : A B , defined by f(x) = . Show that f is one-one and onto and hence find .

7.Show that f : N N ,given by f(x) = x+1,if x is odd , is both one – one and onto .

X – 1,if x is even

8.Find the value of + (sin( )) .

9.Simplify ( +sinx) , x є [-

10. Find x , if ( ) + ( ) =

11.Prove that ( ) + ( ) = ( )

12.Prove that ( ) + ( ) + ( ) =

13.If x + y + z = π, then prove that + + +2xyz = 1

14. Prove that 1 + 2 + 3 = .

15. Prove that sin (2 ) + cos (2√2 ) =

16. Prove that ( ) +( ) + ( ) =

17.Solve for x : ( ) + ( ) = , 0≤ x ≤ 1.

18. Solve for x: (x – 1) + x + (x + 1) = (3x)

Class XII C(Informatics Practices)

Assignment

Chapter : Computer Networking

Unsolved Problem: (Page no- 43)Question no 1 to 8

Type A: Very short answer question (Page:51) : Question no-1 to 20

Type B: Short answer question (Page no: 52)- Question no-4 to 17

Long answer question: (Page no-199) Question no-2 to 8

Project

(Any one project in a group of 2 or alone)

Library Management System
Banking System
Hospital Management System
Railway Reservation System
Inventory control program
Examination System
Quiz
Game
Hotel Management
Any domain- E-Governance / E-Business/ E-Learning

( Or any other domains on the similar lines)

Home Work Class XII D

Class XII D(Informatics Practices)

Assignment

Chapter : Computer Networking

Unsolved Problem: (Page no- 43)Question no 1 to 8

Type A: Very short answer question (Page:51) : Question no-1 to 20

Type B: Short answer question (Page no: 52)- Question no-4 to 17

Long answer question: (Page no-199) Question no-2 to 8

Project

(Any one project in a group of 2 or alone)

Library Management System
Banking System
Hospital Management System
Railway Reservation System
Inventory control program
Examination System
Quiz
Game
Hotel Management
Any domain- E-Governance / E-Business/ E-Learning

( Or any other domains on the similar lines)

Subject: ECONOMICS

CLASS XII D

Group- wise different sets of questions are assigned.

LEADER

XII C XII D

GROUP –ASnehaChakrabortyAnumitraChatterjee

GROUP –BAmit Kumar ChowdharyShreya Sharma

GROUP –CTamannaGargShalini Panda

GROUP –DRichikaBiswasRamyani Das

GROUP –ESoummyajitGuhaMoumitaDutta

GROUP –FB BhargavaRobin Singh

GROUP –GEvangeline JebarajMoumitaDutta

GROUP –HSoumi ChandraRamyani Das

GROUP –ISanchitaBanerjeeShalini Panda

Subject Teacher: IndraniSengupta

GROUP –A

1 Mark Questions

What is an Economy?
What is meant by scarcity of resources?
What is meant by economising of resources?
Can there be an Economy without an economic problem?
Define PPC.
Define MOC/MRT.
Why is a PPC concave?
What does a movement along the PPC indicate?
What factors lead to a rightward shift of the PPC?

10. What does a point below PPC indicate?

GROUP –B

3 marks Questions

Distinguish between Microeconomics and Macroeconomics. Give example.
What are the three central problems of an Economy?
Explain the central problem of ‘What to produce’ with the help of an example.
Explain the central problem of ‘How to produce’ with the help of example.
Explain the central problem of ‘For whom to produce’ with the help of example.

GROUP –C

3 marks Questions

Explain the concept of PPC with the help of a diagram.

Why is a PPC concave?

Why is PPC downward sloping from left to right?
Draw a PPC and show the following situations.

i) Full employment of resources.

ii) Underutilisation of resources.

iii) Growth of resources.

Explain how scarcity and choice go together.

Why does economic problem arise?

GROUP –D

1 Mark Questions

Define utility.
Define total utility.
Define marginal utility.
State the law of diminishing marginal utility.
State the law of equi-marginal utility.
What happens to total utility if marginal utility is zero?
State the conditions for consumer’s equilibrium given by utility approach in single commodity.
State the conditions for consumer’s equilibrium given by utility approach in case of two- commodity.

GROUP E

3-4 Mark Questions

Explain the relationship between total utility and marginal utility with the help of a schedule and diagram.
Define marginal utility. State the law of diminishing marginal utility
Explain the properties of IC.

GROUP F

4-6 Mark Questions

Explain the consumer’s equilibrium in case of a single commodity with the help of utility schedule.
Explain the consumer’s equilibrium in case of two commodities with the help of utility schedule.

GROUP G

3 Mark Questions

‘An economy always produces on but not inside PPC.’Explain.
‘Massive unemployment shifts the PPC to left.’ Justify
‘An economy cannot operate on any point outside the PPC.’Explain

GROUP H