CLASS –XI(SCIENCE) STAY HOME STAY SAFE Page 1

SENIOR SECONDARY CBSE BOARDING SCHOOL

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CLASS – XI(SCIENCE) HOLIDAY HOMEWORK

------------------------------------------------------------------------------------- ENGLISH :-

READING SECTION(PROSE)

1. Give a Brief Character Sketch of Grandmother in The “THE PORTRAIT OF A

LADY”?

2. Describe The Metal Condition of The Voyagers on 4 and 5 January?

POETRY

3. Solve the All the Passage of

(A) A photograph (B)The Laburnum Top

SNAPSHOT

4. Give a Character Sketch Of Aram and Mourad and uncle Khusrove?

5. Describe The Narrator’s First Visit To Mrs. Dorling?

6. The Story “Ranga’s Marriage” is Full of Humour Discuss?

WRITING SECTION

7. Short composition - Solve Two- Two Example of Advertisement, Poster and

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notice with The Help of Book.

8. LONG COMPOSITION -

A- Write An Article On The Role of Social Media In Our Life. Highlight Its Positive

And Negative Impact.

B- Write An Article On “The Success Story Of Prime Minister NarendraModi.

C- Write a Speech I 150-200 words On The Topic “DISCIPLINE SHAPES THE

FUTURE OF A STUDENT”.

PHYSICS :-

1. Write short notes(theory) all points of unit (1and2)

2. Learn and write all formulas of differential and integration

3. Learn and write all formulas of chapter 2( approximately 50)

And write there dimensional formulas

CHEMISTRY:-

1. Learn and complete notes and NCERT exercisefrom chapter – 1st to 4th.

2. Learn & write following terms which are given below –

1) Laws of chemical combination

2) Solid, liquid and gas

3) Atoms

4) Molecules

5) Compounds

6) Chemical composition

7) Electrons

8) Protons

9) Neutrons

10) Rutherford model

11) Bohr model

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12) Heisenberg uncertainity principle

13) Atomic sizes

14) Ionization enthalpies

15) Electron gain enthalpies

16) Electronegativity

17) Chemical reactivity

18) S- p- and f- block elements

19) Covalent bonding

20) Ionic compound

21) Crystal lattice

22) Lone pairs of electrons

23) VSEPR the or hydrogen bonding

24) Hybridization

25) Molecular orbital theory

BIOLOGY:-

1. Name the three fields of systematic.

2. Write the correct order of sequence of taxonomical categories?

3. What is systematic?

4. Differentiate between species & taxon?

5. What is Taxonomic key? How is it helpful in the identification &

classification of an organism?

6. Why growth and reproduction cannot be taken as defining property of all

living?

7. What is Binomial system of nomenclature? Who proposed this system?

Why is binomial nomenclature the most acceptable mode of naming

organism?

8. How would you set up a herbarium?

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9. Explain the utility of systematic & mention the characteristics of new.

10. Differentiate between classical taxonomy & Modern taxonomy.

11. Name the fungus which causes disease in wheat (I) rust (ii) Smut.

12. Expand PPLO.

13. In which class of fungi sexual reproduction does not occur?

14. What are distributed organisms which have not been included under any

kingdom?

15. Give one example of a fungus as a source of antibiotics?

16. How are viroids different from viruses?

17. Compare salient features of monera & protista.

18. Discuss the salient features of viruses with the help of diagram?

19. Give a comparative account of classes of kingdom fungi on the basis of

mode of nutrition & mode of reproduction.

20. What are the different groups of fungi?

21. Write the diagnostic characters of kingdom monera.

22. Compare the kingdoms under five kingdom classification in terms of cell

type cell organelles Nucleus, motility, cellularity.

23. Explain the various methods of asexual & sexual reproduction in fungi?

24. Write the distinct characters of fungi & explain using a diagram.

25. Discuss different systems of classification briefly.

PHYSICAL EDUCATION :-

❖ Write answers of the following questions.

1. What do you understand by yoga write its elements.

2. Define any six career objectives in physical education.

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3. What is the meaning of physical fitness and wellness? Describe the factors

affecting physical fitness and wellness.

4. Write short notes in briefly on the following:

a) Olympic motto b) Olympic flag. c) Olympic flame.

d) Olympic awards e) Olympic oath

5. Define physical education.

6. What do you mean by pranayama? Mention the types of pranayama.

7. Draw a diagram of the field and court of the game/sport of your choice with the

specification of related equipments.

8. Write the brief history of game/Sport of your choice.

9. Write the brief history of Olympic games?

10. Define the objectives of physical education.

Mathematics:-

1. Let A ={1,2,3,4}, B= {1,2,3} and C={2,4}. Find all sets X such that .

2. Let A = {1, 2} and B = {3, 4}. Give all possible subsets of A × B.

3. If F = R → R is defined by f(x) = x2 - 3x + 2, find f(f(x)).

4. Define Signum function. Determine its domain and range.

5.

a. Show that implies that A = B.

b. In a survey of 25 student, it was found that 15 had taken mathematics, 12 had taken

physics and 11 had taken chemistry, 5 had taken mathematics and chemistry, 9 had

taken mathematics and physics, 4 had taken physics and chemistry and 3 had taken

all three subjects. Find the number of students that had taken mathematics and

physics but not chemistry.

6.

a. Let A = {9,10,11,12,13} and let f: A → N be defined by f(n) = the highest prime factor of

n. Find the range of f. b. Find the domain and range of .

SET - B

1. Let R be a relation from N to N define by R = {(a, b): a, b and a = b2}. Is it true that

(a, b) implies (b, a) .

2. If show that x = f(f(x)).

3. Define Modulus function. Determine its domain and range.

5.

a. Let A, B and C be the sets such that

and Show that B = C.

b. In a survey it was found that 21 people liked product A, 26 liked product B and 29

liked product c. If 14 people liked products A and B, 12 people like C and A, 14 people

like B and C and 8 liked all the three products. Find how many people liked product C

only.

6.

a. Let f be a subset of Z × Z defined by {(ab, a +b: a, } . Is fa function from Z to Z?

Justify your answer.

b. Find the domain and range f .