XI (SCIENCE)
Name: _______________________________
Std. _________________________________
2016-17
SUMMER HOLIDAYS
HOME WORK
TRAVELLING AN EXTRA MILE.......
1
Dear Children,
Holidays are always a welcome change. With summer
break round the corner each one of you must be
excited about meeting relatives, going places and
having fun.
However, you all must remember that a judicious
balance must be maintained between academics and
entertainment. To spend your time constructively you
all need to be organized and follow some regular
schedules as per choice. Your teachers have made
earnest
efforts
to
design
some
constructive
assignments and projects to keep you productively
engaged during the vacations. Give some quality time
to your books and keep yourself gainfully occupied.
Have Fun Filled Holidays!
With Love
PRINCIPAL
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ENGLISH (301)
Q1. Read the novel ‘The canterville Ghost’ and make a project for the
following questions:
a. Write down the characters of:
1. The Canterville Ghost
2. Virginia
b. Discuss “The Canterville Ghost” as a ghost story.
c. Discuss the use of wit and humour which is found in abundance in the
story.
d. What games and tricks did the twins play on the ghost, which terrified
and injured the Canterville ghost?
e. Discuss the ghost’s reaction when he encountered another ghost.
Q2. Write a short summary in at least 150 words for each of the following:
a. A photograph – By Shirley Toulson
b. The portrait of a lady- By Khushwant Singh
c. The address- By Marga Minco
d. The summer of the beautiful White Horse- by William Saroyan
e. Ranga’s Marriage- By Masti Venkatesha Iyengar
Q3. Take an interview of your grandparents/ parents about the way they
used to spend their summer holidays and write the same in 200 words.
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PHYSICS (042)
1. Name the famous scientist.
(a) Who discovered the law of gravitation?
(b) Who first measured the charge on a electron experimentally?
2. What does the word LASER stand for?
3. Define basic S. I. unit of length in terms of wavelength.
4. State and explain three uses of dimensional analysis. Write down the limitation of
dimensional analysis.
5. What is the difference between Ao and A.U.?
6. Define S. I. unit of solid angle.
7. Name physical quantities whose units are electron volt and Pascal.
8. Find the dimensions of latent heat and specific heat.
9. E, M, L and G denote energy, Mass, angular momentum and universal gravitational
constant respectively, determine the dimensions of
𝐸𝐿2
𝑀5 𝐺 2
10. State which of the following are dimensionally correct!
(a) Pressure= Energy per unit volume.
𝑀𝑜𝑚𝑒𝑛𝑡𝑢𝑚
(b) Pressure= 𝑉𝑜𝑙𝑢𝑚𝑒 × 𝑡𝑖𝑚𝑒
11. In Vander Wall’s equation
𝑎
(p+𝑣 2 ) (v-b) = RT
Where p&v are pressure &volume of a Perfect gas, Find the dimensional formula for
constants a&b. Write the S. I. units of a&b.
12. If x=at+bt2, where x is meters and t in seconds. What are the units of a &b?
13. If force (F), acceleration (A) and time (T) are taken as fundamental units, then find
the dimension of energy.
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PHYSICS (042)
14. If velocity, time force were chosen the basic units, find dimensions of mass.
15. Young’s Modulus of steel is 19 × 1010 Nm-2. Express it in dyne cm-2. Here dyne is
the C.G.S. unit of force.
16. The velocity v of water waves may depend on their wavelength λ, density of water d
and the acceleration due to gravity g. Find relation between these quantities by the
method of dimension.
17. Two resistance R1= 100+ 3 Ω and R2=200 + 4 Ω are connected in parallel, then
what is the equivalent resistance?
18. The force acting on an object of mass m travelling at velocity u in a circle of radius r
is given by
𝑚 𝑢2
F= 𝑟
The measurement recorded as
m= 3.5 kg + 0.1 kg; u= 20m/s + 1m/s; r= 12.5 m + 0.5m
Find the maximum possible fractional error or relative error in the measurement of
force. How will you record the reading?
19. The density of cylindrical rod was measured by the formula
4𝑚
d = 𝜋𝐷 2 𝑙
The percentage in m, D, and l are 1%, 1.5% and 0.5%. Calculate the % error in the
calculated value of density.
20. A radar signal is beamed towards a planet from the earth and its echo is received 7
minute later. Calculate the velocity of the signal, if the distance between the planet
and earth is 6.3×1010m.
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CHEMISTRY (043)
General Instructions:1. A copy of this assignment should be pasted in the classwork register.
2. All the questions should be solved in the register.
3. Select a topic for the CBSE project and write a synopsis on it including the following points:
aim, materials required, apparatus & procedure. (in a separate folder)
1. 1.6 g of a hydrocarbon on complete combustion gave 4.4 g of CO2 and 3.6 g of H2O. Show that
this data proves law of conservation of mass.
2. 2.16 g of Cu metal, when treated with HNO3 followed by ignition of the nitrate gave 2.7 g of
copper oxide. In another experiment, 1.15 g of copper oxide upon reduction with hydrogen
gave 0.92 g of copper. Show that the above data illustrates the law of definite proportions.
3. 2g of sulphur combines with 3.2 g of oxygen to form a compound in one set of conditions.
In another set of conditions, 0.8 g of sulphur combines with 1.2 g of oxygen to form another
compound. State the law illustrated by these chemical combinations.
4. Copper forms two oxides. On heating 1 g of each in hydrogen gave 0.888 g and 0.799 g of the
metal respectively. Show that these results agree with the law of multiple proportions.
5. Which of the following has maximum weight?
(i) 50 g Fe
(ii) 5 atoms of nitrogen (iii) 1× 1023 atoms of carbon
6. Calculate the amount present in grams in:
(i) 0.75 gram atoms of sulphur (ii) 2.5 gram atoms of phosphorous
7. Calculate the number of molecules present in 280mL of oxygen at STP.
8. Calculate the number of molecules in a drop of water weighing 0.05 g.
9. 3 g of H2 reacts with 24 g of O2 to form water.
(i) Which of the two is the limiting reagent?
(ii) Calculate the maximum amount of water that can be formed.
(iii) Calculate the amount of the reactant left unreacted.
10. What mass of slaked lime would be required to decompose 4 g of NH4Cl completely? What
would be the mass of each product?
11. A solution is prepared by dissolving 18.25 g of NaOH in distilled water to give 200 cc of the
solution. Calculate the molarity of the solution.
6
CHEMISTRY (043)
12. Concentrated aqueous sulphuric acid is 98 % pure by mass and has a density of 1.84 g/cc.
What volume of conc. acid is required to make 5 L of 0.5 M H2SO4 solution?
13. How many moles and grams of NaCl are there in 250 cc of a 0.5 M NaCl solution?
14. 0.1931 g of diamond gave 0.704 g of CO2 on complete combustion. Calculate the %age purity of
diamond.
15. Calculate the empirical and molecular formula of the compound from the following data:
(i) C= 34.6 %, H= 3.84 % and O= 61.56 % (Molar mass = 104)
(ii) C= 54.2 %, H= 9.2 % and O= 36.6 % (Molar mass = 88)
16. Solution A contains 10 g of glucose dissolved in 250 mL of water and solution B contains 30g
of sugar dissolved in 500 mL of water. Compare their molarities.
17. A commercially available sample of H2SO4 has a composition of 15 % H2SO4 by mass. The
density of the solution is 1.10 g/mL. Calculate molarity, molality and normality.
18. Methane burns in oxygen to form CO2 and H2O. Write a balanced equation for the reaction
and calculate:
(i) How much amount of CO2 and H2O are formed when 8 g of methane reacts with oxygen?
(ii) Which is the limiting reagent when the above amount of methane reacts with 29 g of of O2?
19. A compound on analysis gave the following data:
Na = 14.31 %, S = 9.97 %, H = 6.22 % and the rest is oxygen. Find out the molecular formula of
the compound assuming that the hydrogen in the compound is present in combination with
oxygen as water of crystallization. Given that the molar mass of the compound is 322 g.
20. How much KClO3 should be heated to produce 2.24 L of oxygen at STP?
21. What volume of oxygen at STP is required to effect complete combustion of 200 cc of acetylene?
What would be the volume of CO2 formed?
22. What mass of NH3 is formed when 10 Kg H2 is reacted with 50 Kg N2?
23. Write different laws of chemical combination.
24. Define empirical and molecular formula.
25. Define mole.
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CHEMISTRY (043)
26. Explain Thompson experiment with diagrams.
27. Define atomic number and mass no.
Prepare a project work on any of the following
1) Study of methods of purification of water.
2) Analysis of hard water.
3) To study the foaming capacity of soaps.
4) The study of contents responsible for flavor of tea.
5) To study the rate of evaporation of different liquids.
6) Study of effect of acids and bases on tensile strength of fibres.
7) Preparation of rayon thread from filter paper.
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MATHEMATICS (041)
Complex numbers and quadratic equations.
1. Evaluation:i. −100 ii. −25 + −16 iii. −8 - −2 iv. −36. −49
v.
−25
−5
2. Is the following mathematical sta8tement correct? If not, write the correct statement.
−3. −5 – −3 (−5) = 15.
3. Evaluate the following.
i. i25
ii. i26 iii. i-101 iv. i-1003
-420
v. i
vi. (-i)200 viii. i-786
4. Evaluate the following where nϵ z
i. i4n+3 ii. I4n-3 iii. ( −1)4n+7
iv. (- −1)4n+9
5. Find the values of the following expressions.
i. ( −3)23
ii. ( −9)-7
iii. ( −4)17
iv. ( −5)5
6. Express the following in the form a+ib
i. i9+i19
ii. i75+i80+i85+i90
n
n+1
n+2
n+3
iii. i +i +i +i
iv. i0+i2+i4+i8+---+i18+i20
7. Express the following in the form a+ib
5+ 2𝑖
i. 1−
2𝑖
1
ii. (-i) (2i) (-8i)3
iii. (- 3+ −2) (2 3-i)
8. Express the following in the form of a+ib
3
𝑖 574 +𝑖 576 +𝑖 578
i. 𝑖 590 +𝑖 588 +𝑖 856
ii. 𝑖 18 + (1 𝑖 )25
9. Find real Θ such that
3+2𝑖 𝑠𝑖𝑛 Ѳ
is purely real.
1−2𝑖 sin Ѳ
1+𝑖
10. If (1−𝑖 )𝑚 = 1. Their find the least value of m.
11. Find the real number x ad y such that (x-iy) (3+5i) is the conjugate of -6-24i
9
MATHEMATICS (041)
12. If 𝑧1 = 1 and 𝑧2 = 1 Then Show that
13. If a+ib =
1
𝑧1
1
+ 𝑧 = 𝑧1 + 𝑧2
2
(𝑥+𝑖)2
2𝑥 2 +1
(𝑥 2 +1)2
Prove that a2+b2 = (2𝑥 2 +1)2
14. If α and β are different complex numbers with 𝛽 =1. Then find
𝛽 −𝛼
1−ᾱ
𝛽
15. Find the square root of 2-2 3i.
16. For what value of x and y are (3x-7)+2iy and -5y + (5+x) I equal.
1
2
3−4𝑖
17. Reduce (1−4𝑖 − 1+𝑖 ) ( 5+𝑖 ) ee
the standard form.
𝑎+𝑖𝑏
18. If x+iy = 𝑎−𝑖𝑏
Prove that x2+y2=1
19. Find the modules and argument of the following complex numbers.
1+𝑖
1+2𝑖
i) z= 1−𝑖
ii) Z= 1−3𝑖
20. Represent the following complex in polar form:
i. z =
2+6 3𝑖
5+ 3𝑖
1+7𝑖
−16
ii. z = 1+𝑖
3
iii. z = (2−𝑖)2
21. Solve the quadratic equation:i. 3x2- 2x+3 3 = 0
iii. 2x2+3ix+2 = 0
v. 2x2+ 15 ix-I = 0
𝑥
ii. x2+ 2 +1 =0
iv. x2 –x+(1+i) = 0
vi. x2 – (3 2+2i)x+6 2i = 0
10
.
MATHEMATICS (041)
1. State which of the following pair of sets are equal, justify your answer:
i. A= {x:x is a letter is the word “FOLLOW and
B = {y:y is a letter in the word ‘WOLF’}
ii. A = {2,3}
and B = {x:x is secretion of x2+5x+6 = 0}
2. From the sets given below select equal and unequal sets:
A = {0}
B = {x:x>15 and x<5}
C = {x: x-5=0} D = {x:x2=25}
E = {x:X is an integral positive root of the equation x2-2x-15=0}
3. Find the number of subsets of the following sets:
i. φ
ii. {1, 2, 3}
4. Draw appropriate venn diagram for each of the following.
i. B-A
ii. (A-B)1
iii. A-(A∩ B)
5. In an examination, question numbers 1 was un attempted by 67 students, question number 2
by 46 students and question number 3 by 40 students, 28 students attempted both question
number 1 and 2, 8 attempted both question number 2 and 3, 26 attempted both question
number 1 and 3 and 2 students attempted all the three questions. Find how many attempted
question number 1 but not 2 and 3.
6. In a survey by 25 students, it was found that 15 had taken mathematics, 12 had taken physics
and 11 had taken chemistry, 5 had taken mathematics and chemistry, I had taken
mathematics and physics, 4 had taken physics and chemistry and 3 had taken all the three
subjects. Find the number of students that had taken.
i. Only chemistry.
ii. Only Mathematics.
iii. Only Physics.
iv. Only one of the subjects.
v. Only physics and chemistry.
vi. Only mathematics and physics.
vii. Only mathematics and chemistry.
viii. Only two of the subjects.
ix. At least one, subject.
x. None of the subject.
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MATHEMATICS (041)
7. In a group of 850 persons, 600 can speak Hindi, and 340mm speak English. Find
i. how many can speak both Hindi and English
ii. how many can speak Hindi only.
iii. how many can speak English only.
8. If U = {a, b, c, d, e}
A = {a, b, c}
B = {b, c, d, e}
Then verify that:i. (AUB)1 = (A1∩ B1)
ii. (A∩ B)1 = A1UB1
9. U = {1, 2, 3, 4, 5, 6, 7, 8, 9}
A = {1, 2, 3, 4}
B = {2, 4, 6, 8}
C = {1, 4, 5, 6}
Find
i. A'
v. (AUB)'
ii. B'
vi. (A∩ C)'
iii. C'
iv. (B')1
vii. (B-C)'
10. Write each of the following intervals n the set builder form:
i. A = (-2, 3)
ii. B = [5,9]
iii. C = (8,11)
iv. D = (4,9)
v. 6 = [12, 6]
vi. F= [0,4]
11. Express each of the following sets as an interval:
i. A = {X:X∈R, -4<x<10}
ii. B {X: X∈R, O⊆SXR}
iii. C = {x:x∈R, 2≤x≤6}
iv. B= {x:x∈R, -5≤x≤2}
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BIOLOGY (044)
1. What is open and closed type of circulatory system?
2. Which type of symmetry do the following animals have, explain the symmetry also:sponges, echinoderms, annelids.
3. Give single terms for:a. Animals which have ectoderm & endoderm only.
b. Animals which ectoderm, mesoderm and endoderm.
4. Define coelom. Give e.g. of animals who are coelomates.
5. What are pseudocoelomates & acoelomates animals? Give egs also.
6. What is metamerisation ?
7. Give flowchart of classification of animals.
8. Explain the terms of Phylum Porifera: - Water canal system, coenocytes & types of
skeleton sponges have.
9. (a) In which phylum do you find cnidoblasts? What is its function?
(b) Give differences between polyp & medusa.
10. What is bioluminescence?
11. What is the function of flame cells? In which phylum are they found?
12. Which phylum has the characteristic – bilaterally symmetrical, triploblastic,
pseudocoelomates animal?
13. What are the functions of parapodia & nephridia?
14. Which is the largest phylum of Animalia?
15. Describe the following features of an arthropod (a) Body exoskeleton (b) appendages
(c) organs of respiration, balance organs & organs of excretion.
16. Give characteristic features of Phylum Mollusca.
17. Which are the most distinctive features of an Echinoderm?
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BIOLOGY (044)
18. Give differences between chordates & Nonchordates.
19. Which are the three subphylum of Phylum chordata?
20. List the features of Vertebrata & give its flowchart.
21. List the features of with examples: (i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
Class cyclostomata
Class chondrichytes
Class Osteichythes
Class Amphibia
Class Reptilia
Class Aves
Class Mammalia
PROJECT
Make Powerpoint presentation on :
Kingdom Monera, Protista andAnimalia (Odd roll no)
Kingdom Plantae and Fungi (Even Roll no)
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INFORMATION PRACTICES (065)
Answer the following questions:
Do the following question answers
Q1. What are the different types of software? Define each.
Q2. Explain about different types of system software in detail.
Q3. Explain about different types of application software in detail.
Q4. Explain about different types of operating system in detail.
Q5. What is computer security?
Q6. Explain the threats to computer security in detail?
Q7. Explain the solutions to computer security threats in detail.
Create a file on any one topic given below:
a) Explain any one feature of object oriented programming in detail
b) Data Types and Operators in Java
15
PHYSICAL EDUCATION (048)
Unit: 1 changing trends & career in physical education
1. Define physical education, its aim and objectives
a.
b.
c.
d.
e.
Physical development
Social development
Mental development
Coordinative & agility development
Emotional development
2. Explain the Development of physical education post-independence
a. Central advisory board of physical education and recreation
b. All India council of sports
c. N.S.N.I.S
d. S.A.I
3. What is the concept and principles integrated physical education?
4. What is the concept and principles of adapted physical education?
5. How many career option in physical education explain all?
Project Work
 Prepare one diagram of any recognize game on chart paper with all
measurement.
 Prepare a project showing nutrition guide for women football player.
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