VIDYASAGAR SCHOOL, INDORE SUMMER ASSIGNMENT- 2019-20

CLASS - XI

ENGLISH

Q.1 You are the Sports Captain of your school. Write a notice in about 50 words for the notice board of your school

informing students about the Inter-school CBSE Athletics Meet to be held in the month of July and selections and

training camp for the same. Give necessary details.

Q.2 As an educational citizen you are pained to see the physical health of youngsters deteriorating because of an

unhealthy lifestyle. Draft a poster reflecting your concern in about 50 words.

Q.3 You are Raj/Rajlaxmi Walia, living at 4, Defence colony, Allahabad. Write a letter to the editor of a newspaper about

the burden of the heavy bags that young children carry to school in about 120 words.

Q.4 Write a summary of the poem ‘APhotograph’ or write the questions and answers of the poem.

PHYSICS Q.1 Differentiate the following with respect to X (Multiplication of two functions)

a) y= sin x . cos x

b) y= cot x. cos x

c) y= log x . cot x

d) y =ex log x

e) y= x sinx cos x

Q.2 Differentiate the following with respect to X (Division of two functions)

a) y =log x / sinx

b) y = cot x /cos x

c) y = ex /tanx

d) y = x sin x / cos x

e) y = x logx /x

Q.3 Differentiate the following with respect to X (Substitution method)

a)y = e sinx

b) y =Sin (cosx)

c) y = cos x2

d) y = log (sinx)

e) y = e tanx

Q.4 The displacement of a particle at any instant is given by y= t3-2t2+1 . find velocity and acceleration of

the particle at t = 2 sec and t =3 sec.

Q.5 The position of an object moving along x-axis is given by x = a + bt2 where a = 8.5 m, b = 2.5 m s–2 and

t is measured in seconds. What is its velocity at t = 0 s and t = 2.0 s. What is the average velocity between t

= 2.0 s and t = 4.0 s ?

Q.6 find the velocity and acceleration of the body moving on a circular track of radius r and displacement

of the body is given by

Y = r sin𝜔t

Q.7 if x =a cos 𝜃 and y= b sin 𝜃 than find dy/dx

Q.8 Integrate the following (Indefinite integrals)

a) I= sin3x 𝑑𝑥

b) I = 𝑐𝑜𝑠2 x dx

c) I = 1/(1 − 4𝑥) dx

d) I = 𝑐𝑜𝑠𝑒𝑐 2 x dx

e) I = 1

1−𝑠𝑖𝑛𝑥 dx

f) I = 𝑐𝑜𝑠4x .sin x dx

g) I = tanx dx

h) 1 − cos 𝑥 dx

Q.9 Integrate the following (definite integrals)

a) 𝐺𝑀𝑚

x2

𝑅

∞ dx

b) 𝑐𝑜𝑠𝑥 𝑑𝑥𝜋/2

0

c) (1 − cosx) 𝑑𝑥𝜋/4

0

CHEMISTRY

NCERT TEXT BOOK – ATOMIC STRUCTURE

1. Mention properties of electromagnetic radiations.

2. State the following with suitable examples; (a) Hund’s rule (b) pauli’S rule (c) Afbau’s rule

(d) ( n+l ) rule

3. Explain quantum number of electron and calculate the set of quantum number of the given

electrons (a) 12 th electron of Al (b) 26 th electron of zinc

4. State Heisenberg ‘s principle and give its significance.

5. Write short note on ; (a) Photoelectric effect (b) Black body radiations ( c) Atomic spectrum

6. Numeric questions given in NCERT book based on debrogli’s equation and work function

equation.

7. Distinguish between Orbit and Orbitals.

8. Write electronic configurations of Copper and Chromium with reason.

9. Electronic configuration of elements of atomic number 1 to 30.

10. NCERT EXAMPLES ( SOLVED )

MATHEMATICS

Q.1 The lengths (in cm.)of 10 rods in a shop are given below :

40.0,52.3,55.2,72.9,52.8,79.0,32.5,15.2,27.9,30.2

(i) Find the mean deviation from median.

(ii) Find the mean deviation from mean also.

Find the number of observations lying between 𝑋 – M.D. and 𝑋 + M.D.

Q.2 Calculate the mean deviation from the median of the following distribution

Height(in inches)

58 59 60 61 62 63 64 65

No.of students

15 20 30 35 35 22 20 8

Also find the mean deviation from mean .

Q.3 Calculate the mean deviation about the median age for the age distribution of 100 persons given

below :

Age 16-20 21-25 26-30 31-35 36-40 41-45 46-50 51-55 No.of persons

5 6 12 14 26 12 16 9

Also calculate the mean deviation about mean age.

Q.4 Find the mean, variance and standard deviation of the following data

227,235,255,269,292,299,312,321,333,348.

Q.5 For a group of 200 candidates ,the mean and standard deviations of scores were found to be 40and 15

respectively .later on it was discovered that the scores of 43 and 35 were misread as 34 and 53

respectively .Find the correct mean and standard deviation .

Q.6 Find the standard deviation of following data

X 3 8 13 18 23 f 7 10 15 10 6 Q.7 Calculate the mean, median and standard deviation of the following distribution

Class-interval: 31-35 36-40 41-45 46-50 51-55 56-60 61-65 66-70 Frequency: 2 3 8 12 16 5 2 3 Q.8 Coefficient of variation of two distributions are 60% and 70% and their standard deviations are 21

and 16 respectively . what are their arithmetic means?

Q.9 The following are some particulars of the distribution of weights of boys and girls in a class:

Number Boys 100

Girls 50

Mean Weight 60 kg 45 kg Variance 9 6 Which of the distribution is more variable?

Q.10 From the data given below which group is more variable G1 or G2?

Marks 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Group G1 9 17 32 33 40 10 9 Group G2 10 20 30 25 43 15 7 Q.11 Find the image of

(i) ( - 2,3,4) in yz plane (ii) ( -5,4,-3) in xz plane .

Q.12 Find the distance of the point P( -4,3,5) from the coordinate axes.

Q.13 Find the points on z axis which are at a distance of 21 from the point (1,2,3).

Q.14 The vertices of a triangle are A(4,5,6) ,B(1,-1,3) and C(4,3,2).The internal bisector of angle A meets

BC at D .Find the coordinates of D and length of AD.

Q.15 Find the ratio in which the line segment joining the points (2,-1,3) and (-1,2,1) is divided by the

plane x+y+z=5.

BIOLOGY

1. Define species. 2. What is systematics ? 3. Give the names of two famous botanical gardens. 4. What is the basis of modern taxonomical studies ? 5. Why growth and reproduction cannot be taken as defining property of all living organisms ? 6. How is a taxon (pl.taxa) defined ? Short Answer Question-II (3 marks each) 7. What is the difference between Botanical Garden and Herbarium ? 8. Keys are analytical in nature and are helpful in identification and classification of organisms. How ? 9. Define : (a) Genus (b) Family (c) Order 10. What are the universal rules of nomenclature ? What does ëLinn.í Refer t o in Mangifera indica Linn ? 11. Nostoc and Anabaena have specialized cells called heterocysts. What is the function of these cells ? 12. Which group comprises of single celled eukaryotes only ? 13. Which organisms are the chief producers in oceans ? 14. Name the fungus which causes disease in wheat (i) rust (ii) smut. 15. Which Ascomycetes has been used extensively in biochemical and genetic work ? 16. What is the principle underlying the use of cyanobacteria in agriculture ? 17. How are bacteria classified on the basis of their shapes ? 18. What is the mode reproduction in bacteria ? 19. Why are red tides caused and why are they harmful ? 20. Viruses and viroids differ in structure and the diseases they cause. How ? 21. Which class of kingdom fungi has both unicellular as well as multicellular member ? When is a fungus called coprophilous ? 22. Who gave Æve kingdom classification ? What was the criteria used for such classification ? 23. What are the modes of nutrition in fungi ? 24. Some symbiotic organisms are very good pollution indicators and composed of a chlorophyllous and a non-chlorophyllous member. Describe them. 25. differentiate between various classes of kingdom Fungi on the basis of their (i) Mycelium, (ii) Types of spores and (iii) Types of fruiting body. Also give two examples for each class.

Accountancy

Q1 (a) Analyse everyday situation (during your vacations) & collect 30 business transactions. (b) Visit an enterprise (sole proprietor) & collect 30 business transactions. Q2. Write short note on the followings: (a) Owner’s fund (b) Outstanding Expenses (c) Prepaid Expenses (d) Accrued income and Unearned income (e) Double Entry System

Business Studies Q1. What do you understand by Business? Q2. What is Indigenous Banking? Explain history of Indigenous Banking of India. Q3. Explain the term Commerce? Q4. Explain the classification of Industry? Q5. Why profit is important for a business organization? Explain. Q6. Visit any one form of Business Organization nearby your home town and collect information about it : Name of the organization, establishment date, ownership nature, product or services offered, capital investment, sales (Daily/ yearly).Ect.

Economics

1) Analyse and evaluate real world economic scenarios using theoretical constructs and arguments. 2) Project should be of 3500 to 4000 words preferably hand written. Scope of the project: # Collection of the research material # Organisation of the material # Present material # Analysing the material for conclusion # Presentation of the project work

POLITICAL SCIENCE

1. Write the Preamble to the Constitution and illustrate each term giving examples. Support your

explanation with newspaper clippings.

2. “ Politics is conciliation of interest.”Explain (Reference can be taken from current political

scenario)

3. Vigilant citizens are must for the successful working of democracy.Comment.

PSYCHOLOGY Q1. Describe the evolution of Psychology. Q2. What are the different themes of Research and Application? Describe giving examples. Q3. Describe the different branches (fields) of Psychology.

COMPUTER SCIENCE

Data Representation 1. Convert the following- (i) (97)10 to binary (ii) (63.25) 10 to binary (iii) (110.01) 2 to decimal (iv) (111011110101)2 to hexadecimal (v) (5B7D)16 to binary (vi) (5A9)16 to decimal (vii) (510)10 to hexadecimal (viii) (11001101110)2 to octal (ix) (5371)8 to binary (x) (5737)8 to decimal (xi) (257)10 to octal 2. Convert FACE16 to binary form 3. State the basic units of the computer. Name the subunits that make up the CPU and give the function of each of the units. 4. What are the different types of softwares? Explain 5. What are major functional components of a mobile system? 6. Draw a block diagram depicting organization of a mobile system.

Physical Education

Q1. Write History, Rules, Regulations, Terminologies, personalities of your opted Game and draw a neat

and clean diagram of your play field Area?

(In a Practical File)

Q2. Explain about any five famous physical education Institutions of India?

Q3. Explain about any ten Good Career options in physical education with required qualification.

Q4. Give Classification of various Bones and joints of human body?

Q5. Explain three types of Muscles and Name of Muscles which is used in Running, Jumping and Throwing

Events.