HOLIDAY HOMEWORK (2016-2017)

CLASS- XI ( SCIENCE)

ENGLISH

Q1. Read the novel “The Canterville Ghost “at home &write its summary in your

classwork note book .

Q2. Name the character of Canterville Ghost and draw the character sketch of :-

1. The ghost

2. Virginia

3. Mr& Mrs. Otis

4. Star and Strips (twins )

Q3. Describe the funeral of Sir Simon ?

Q4 . Why did Mr. Otis request to Lord Canterville to accept the jewels ? What was

his reply ?

Q5. Give a twist to the end of the novel and write the end in your own words ?

Q6. Read newspaper daily to enrich your vocabulary .

Q7. Write an Article on” Depletion of The Earth and its Resource “ in context to

the chapter “The Ailing Planet”

Q8 construct a story on the following sketches :-

Maths

Q1. Which of the followings are sets ?

(i) The collection of all students of your class

(ii) The collection of all short boys of your class

(iii) The collection of all plants of solar system.

(iv) The collection of five most talented writers of India.

(v) The collection of all good athletes of India.

(vi) The collection of fat boys of your locality.

Q2. Let A = { 2, 4, 6, 8, 10 } insert the symbol or ∉

(i) 6 A

(ii) 1 A

(iii) 5 A

(iv) 10 A

(v) 2 A

(vi) 3 A

(vii) A

Q3. Write in roster form

(i) A = { x : R and x2 – 5x + 6 = 0 }

(ii) B = { x : Z+ and x2 = x }

(iii) C = { x : N , x is a multiple of 5 and x2 < 400 }

(iv) D = { x : x is perfect square and x < 50 }

Q4. Write in set Builder form.

(i) A = { 1, 3, 32, 33, }

(ii) B = { –2, –1, 0, 1, 2 }

(iii) C = { 1, 2, 3, 4, 6, 8, 12, 24 }

(iv) D = 1,1

2,

1

3,

1

4,

1

5

Q5. Which of following set is empty Set.

(i) A = { x N : 2x + 5 = 6 }

(ii) B = { x : x N , 1 < x < 2 }

(iii) C = { x : x is prime, 90 < x < 96}

(iv) D = { x : N , x2 + 4 = 0 }

Q6. Which of the following are pairs of equal Sets.

(i) A = { x : set of letters of word ALLOY }

B = { x : set of letters of word LOYAL }

(ii) C = { x : Z , x2 4 }

D = { x : Z , x2 – 4 = 0 }

(iii) E = { x : Z , x – 3 = 0 }

F = { x : Z , x2 – 9 = 0 }

(iv) G = { –1 , 1 }

H = { x : Z , x2 – 1 = 0 }

Q7. Which of the following are pairs of equivalent sets.

(i) A = { 1, 2, 3 } , B = { 2, 4, 6 }

(ii) P = { 0 } , =

(iii) C = { –2, –1, 0 } , D = { 1, 2, 3 }

(iv) E = { x : N , x < 3 }

F = { x : W , x < 3 }

Q8. Write all the subsets of the following .

(i) A = { 3 }

(ii) B = { –2, 5 }

(iii) C = { –3, 0, 3 }

(iv) D = { a , b }

(v) E =

(vi) F = { 2, { 3 } }

(vii) G = { 5 , { 7 , 8 } }

Q9. Express each of the following sets an interval.

(i) A = { x : R , –4 < x < 0 }

(ii) A = { x : R , 0 x < 3 }

(iii) B = { x : R , 2 < x 6 }

(iv) C = { x : R , –5 x 2 }

Q10. Write each of the following in set builder form.

(i) A = ] –2 , 3 ]

(ii) B = [ 5 , 9 ]

(iii) C = ] 8 , 11 [

(iv) D = [ 0 , 4 [

(v) E = [ 4 , 9 [

Q11. If A = { 3 , { 4 , 5 } , 6 } . which one is true.

(i) { 4 , 5 } A

(ii) 4 A

(iii) A

(iv) { 4 , 5 } A

(v) { 3 } A

(vi) { 3 , 4 , 5 } A

(vii) { { 4 , 5 } } A

(viii) { } A

Q12. If A = { a , b , c , d , e , f } , B = { c , e , g , h } and C = { a , e , m , n } . find. all of following

when ℧ = set of all alphabets.

(i) ( A B ) C

(ii) ( A B ) ( B C )

(iii) ( A B ) C

(iv) ( A – B )

(v) A – ( B C )

(vi) ( A – B ) ( B – A )

(vii) A ( B – C )

(viii) ( A C )’

(ix) ( A B )’

(x) ( B – C )’

Q13. Draw Venn diagrams to represents of sets

(i) A B

(ii) A ( B C )

(iii) A – B

(iv) B – A

(v) A – ( B C )

(vi) ( A – C ) ( B – C )

(vii) ( A B )’

(viii) B’ A’

Q14. In a survey of 100 students, the number of students studying the various languages

is found as : English only 18, English but not Hindi 23, English and Sanskrit 8, Sanskrit

and Hindi 8, English 26, Sanskrit 48 and no language 24. Find

(i) no. of Hindi

(ii) no. of English and Hindi both.

Q15. In a class of 35 students, 15 study Economics, 22 study Business Studies and 14

study Advance Accountancy. If 11 students study both Economics and Business studies,

8 study both Business studies and Advanced Accountancy and 5 study both Economics

and Advanced Accountancy and if 3 study all the three subjects. Find how many

students of the class are not taking any of these subjects.

Q16. Prove that

(i) ( A B ) C = A ( B C )

(ii) A ( B – A ) =

(iii) ( A – B ) B =

(iv) A’ – B’ = B – A

(v) A – ( B C ) = ( A – B ) ( A – C )

PHYSICS

EXERCISE-1 (OBJECTIVE QUESTIONS)

Q.1 In the S.I. system, the unit of temperature is-

(A) degree centigrade (B) Kelvin

(C) degree Celsius (D) degree Fahrenheit

Q.2 In the S.I. system the unit of energy is-

(A) erg (B) calorie (C) joule (D) electron volt

Q.3 The dimensions of the ratio of angular momentum to linear momentum is

(A) [M0LT0] (B) [MLT–1] (C) [ML2T–1] (D) [M–1L–1T–1]

Q.4 If Force = (x/density) +C is dimensionally correct, the dimension of x are -

(A)MLT–2 (B) MLT–3 (C) ML2T–3 (D)M2L–2T–2

Q.5 The dimensional formula for angular momentum is -

(A)ML2T–2 (B) ML2T–1 (C) MLT–1 (D) M0L2T–2

Q.6 For 10 , the dimension of a is-

(A)M0 L0 T0 (B)M0 L0 T1 (C) M0 L0 T–1 (D)None of these

Q.7 The velocity of a moving particle depends upon time t as v=at + . Then

dimensional formula for b is -

(A) [M0 L0 T0] (B) [M0 L1 T0] (C) [M0 L1 T–1 ] (D) [M0 L1 T–2]

Q.8 The pairs having same dimensional formula -

(A)Angular momentum, torque

(B)Torque ,work

(C) Plank's constant, boltzman's constant

(D)Gas constant, pressure

Q.9 If F = ax + bt + c where F is force, x is distance and t is time. Then what is

dimension of ?

(A) [M L2 T–2] (B) [M L T–2] (C) [M0 L0 T0] (D) [M L T–1]

Q.10 If force, time and velocity are treated as fundamental quantities then

dimensional formula of energy will be

(A) [FTV] (B) [FT2V] (C) [FTV2] (D) [FT2V2]

Q.11 Which of the following physical quantities do not have the same dimensions

(A) Pressure,Yongs modulus, stress (B)Electromotive force, voltage, potential

(C)Heat ,Work, Energy (D)Electric dipole, electric field, flux

EXERCISE-2 (Miscellaneous Exercise)

Q.1 Taking force, length and time to be the fundamental quantities find the

dimensions of

(I)Density (II) Pressure (III) Momentum and (IV) Energy

Q.2 The frequency of vibration of a string depends on the length L between the

nodes, the tension F in the string and its mass per unit length m. Guess the

expression for its frequency from dimensional analysis.

Q.3 The intensity ofX-rays decreases exponentially according to the law ,where is the initial intensity of X-rays and I is the intensity after it penetrates a

distance x through lead. If be the absorption coefficient, then find the

dimensional formula for . Q.4 Find the dimensions of Planck's constant h fromthe equation E = h where E

is the energy and is the frequency.

Q.5 If the velocity of light (c), gravitational constant (G) and the Planck’s constant

(h) are selected as the fundamental units, find the dimensional formulae for mass,

length and time in this new system of units.

Q.6 The distance moved by a particle in time from centre of ring under the

influence of its gravity is given by

x = asin where a and are constants. If is found to depend on the radius of

the ring (r), itsmass (m) and universal gravitation constant (G), find using

dimensional analysis an expression for interms of r,m and G.

Q.9 A particle is in a uni-directional potential field where the potential energy(U)

of a particle depends on the x-coordinate given by U = k(1 – cosax) and k and a

are constants. Find the physical dimensions of a and k.

Q.10 Consider a planet of mass (m), revolving round the sun. The time period (T)

of revolution of the planet depends upon the radius of the orbit (r),mass of the sun

(M) and the gravitational constant (G). Using dimensional analysis, verify Kepler’s

third law of planetary motion.

EXERCISE-3 (passage based)

PASSAGE (1 to 5)

The van-der Waals equation iswhere P is pressure,V is molar volume and T is the

temperature of the given sample of gas .R is called molar gas constant, a and b are

called van-der Wall constants.

Q.1 The dimensional formula for b is same as that for

(A) P (B)V (C) PV (D)RT

Q.2 The dimensional formula for a is same as that for

(A)V (B) P (C) PV (D)RT

Q.3 Which of the following does not possess the same dimensional formula as that

for RT

(A) PV (B) Pb (C) a/V (D) ab/V

Q.4 The dimensional formula for ab/RTis

(A)M L T (B)M L T (C) M L T (D)M L T

Q5 The dimensional formula of RT is same as that of

(A) energy (B) force (C) specific heat (D) laten heat

Q.6 Match the physical quantities in column A with their dimensional formulae

expressed in column B.

Column A Column B

(1)Angular Momentum (a)M L T

(2) Latent Heat (b)M L T A

(3)Torque (c)M L T

(4)Capacitance (d)M L T A

(5) Inductance (e)M L T A

(6)Resistivity (f)M L T A

(7)Magnetic Flux (g)M L T

(8)Magnetic Energy Density (h) L T

CHEMISTRY

SOME BASIC CONCEPTS OF CHEMISTRY

1. Convert the following in kilogram

(i)0.91 x 10-27 g (mass of eletron) (ii)1fg (mass of human DNA molecule)

(iii)500Mg (mass of jumbo jet ) (iv)3.34 x10-24 g

2. Convert the following in to metre

(i) 7nm (diameter of small virus) (ii) 40Em (thinkness of milky waxy galaxy)

(iii)1.4 Gm (diameter of sun) (iv)41 Pm (distance of nearest star)

3. State the number of significant figures in each of the following numbers.

(i)2.653x104 (ii)0.00368 (iii)653 (iv)0.368 (v)0.0300

4. Express the following numbers to four significant figures.

(i)5.607892(ii)32.392800(iii)1.78986x103 (iv)0.007837

5. Express the following numbers in the exponential rotation three significant

figures.(i)1000000 (ii)0.01256 (iii)1234

6. When 4.2 g of NaHCO3 is added to a solution of CH3COOH weighing 10.0g,it

is observed that 2.2 g of CO2 is released into the atmosphere .The residue left

is found to weigh 12.0g.Show that these observation are in agreement with

the law of conservation of mass.

7. 2g sodium chloride is present in 18g water,determine the percentage of

solute by mass.

8. 10 g glucose is present in 200 ml of solution, if density of solution is 1.10

gml-1, then determine the % of solute (glucose) by mass.

9. How much volume of 10M HCl should be diluted with water to prepare 2L

of 5M HCl solution.

10. A solution of nitric acid is 20% by mass, determine the molality of the

solution.

11. The density of 3M solution of NaCl is 1.25 gml-1. Calculate the molality of

the solution.

12. 500 cm3 of 0.250 M Na2SO4 solution is added to an aqueous solution of

15.0g of BaCl2 resulting into the formation of white ppt of insoluble BaSO4.

How many moles and how many grams of BaSO4 are formed.

13. Write the empirical formula of the compounds having the following

molecular formula.

(i)C6H6 (ii) C6H12(iii) H2O2(iv) H2O(v) Na2CO3 (vi) B2H6 (vii) N2O4(viii) H3PO4

(ix) Fe2O3(x)C2H2

14. A compound contains 4.07% hydrogen, 24.27% carban and 71.65%

chlorine. Its molar mass is 98.96. What are its empirical and molecular

formulas.

15. A welding fues gas contains carbn and hydrogen only. Burning a small

sample of it in oxygen gives 3.38 g carban dioxide, 0.690 g water and no other

products. A volume of 10.0 L (measured at STP) of this gas is found to weigh

11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii)

molecular formula.

16. Calculate the number of molecules in a drop of water weighing 0.05g.

17. Caculate the number of atoms in each of the following:(a)52 moles of He

(b)52 u ofHe(c)52gof He

18. The mass of 94.5 ml of gas at N.T.P is found to be 0.2231 g.Calculate the

molecular mass.

19. 4.6 of sodium is treated with excess of water.Calculate the volume of

hydrogen envolved at S.T.P

20. Calculate the amount of water in g. produced by the combustion of 16 g of

methane.

BIOLOGY

1. Why is there a need of classification?

2. Write a detailed note on taxonomic aids.

3. Give the scientific names of the following:

Frog, cow, banana, horse, mango, apple

4. Why are viruses not included in any system of classification?

5. Define

1. Viroids

2. Mycoplasma

3. Phycobiont

4. Species

5. Taxa

6. ICZN

7. ICBN

8. Alternation of generation

6. Write short notes on:

1. Kingdom Protista

2. Eubacteria

3. Kingdom fungi

4. Gymnosperms

7. Name the following

1. Amphibians of the plant kingdom

2. Autotrophic nitrogen fixing bacteria

3. Heterotrophic nitrogen fixing bacteria

4. Tallest gymnosperm

5. Indian national park

6. Indian zoological park

7. Sacred groves

COMPUTER SCIENCE

Do the following questions in your Class work Notebook : 1. Collect the information about different types of computers on the basis of their size and performance. Write the information and paste the pictures.

2. Mention the innovations in each generation of computer. Also give some examples of computers of each generation. Also mention the time period of each generation.

3. Draw a diagram showing Hardware components and software of computer. Also show different types of computer.

4. Give a brief description of 5 Input and 5 output devices. Mention their proper functioning and paste pictures of selected devices.

5. Write short note on the following topics:-

a) Cloud Computing

b) Artificial Intelligence

c) Parallel processing

d) Network security

e) Cyber Crime

f) Memory Management in computers and role of Secondary storage devices.

g) Open source software. PROJECT WORK Topic: Advancement in Information Technology. Do the project work in a separate File. Utilize the following applications:

Word processing

Spreadsheet

Power point

PHYSICAL EDUCATION

Read and write the measurement of hockey and football.

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