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BRCM Public School, Vidyagram
BAHAL-127028, Bhiwani, Haryana
Tel. : 91 1255 262101-104, Fax 91 1255 262105
Email : [email protected],
Website : www.brcmschool.edu.in
Holiday Assignment (2015-16)
Class: XI Science
English
1. Read the newspaper or watch the news. Choose 10 news stories that you find
interesting. Write short reports in your own words. Use a small notebook.
2. Write an article on the topic, ‘Education is the most powerful weapon’. (200-250
words)
3. Write an article on the topic, ‘Joys of Reading’ or ‘Books –Great Friends’ on an
activity sheet.(200-250 words)
Besiege, invigorate, whimsical, divulge, capricious, hysterical, pertinent, felicitous, guile,
flagrant, pompous, elation, grandiose, assuage, alleviate, devastation, holocaust,
despicable, erudite, demeanor, anticipation, submissive, gullible, clandestine, conceal,
incongruous, jubilation, berserk, expatriate, accessory, idiosyncrasy, appendage,
tranquility, peculiarity, complacent, culinary, embodiment, bereavement, prerogative,
chauvinist, ostracize, philanthropic, introspection, valedictory, commemorate, avarice,
impertinent, ensemble, ominous, enthrall, cutlery, psychic, valedictory, dissection,
luxuriant, elocution, chaperone, dilapidated, circumvent, picturesque, ideologue,
tribulation, protocol, voracious, drought, invocation, picturesque, boomerang, socialite,
pristine, lexicographer, chastise, moribund, cognizance, courteous, contemporary, legacy,
archaeologist, ransacked, colossal, compassion, triumphant, mesmerized, affectionate,
auspicious, restaurants, groceries, swindler, trapezium, vanquish, juncture, commentator,
extracurricular, scrupulous, amateur, extempore, incorrigible, monologue, inaugurate,
dwindling, sanctuaries, invincible, sanctity, comprehensive, assimilation, sultry,
splendor, exquisite, anticipation, assignment, condolence, affirmative, nuisance,
incompatible
4. Learn the words given above. Find their meanings and use in sentences.
5. Revise all the chapters done in class.
6. Prepare a chart on Determiners. Write the types of Determiners with examples.
Physics
Q.1
Q.2
Q.3
Q.4
Define the following terms:
(a) Scientific method
(b) Gravitational force
(c) Weak nuclear force
(d) Strong nuclear force (e) Electromagnetic force (f) Frictional force
Name the Physicists who discovered the following laws/ principles:
(a) Law of inertia
(b) Principle of buoyancy (c) Universal law of Gravitation
Name the Physicists who discovered the following rays/particles:
(a) Electrons (b) X- rays (c) Protons (d) Neutrons
Distinguish between: Strong nuclear force and Weak nuclear force.
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Q.5
Q.6
Q.7
Q.8
Q.9
Q.10
Q.11
Q.12
Q.13
Q.14
Q.15
Q.16
Q.17
Q.18
Q.19
Q.20


Write the differences between: Speed and Velocity.
What do you mean by “Dimensions” of a physical quantity? Define.
Write the dimensions of the following terms:
(a) Momentum (b) Impulse
(c) Force
(d) Pressure
(e) Universal Gravitational Constant
State Newton’s law of Gravitation.
What are the four systems of measurements in Physics? Which one is better amongst them
and why?
Write the difference between Plane angle and Solid angle.
Define 1 radian and 1 Steradian.
What do you mean by Light Year? Write its value in ‘m’.
What is meant by Astronomical Unit (A.U.)? Write its value in ‘m’.
What is Parallax? How can we measure the distance between Earth and Moon by this
method?
Explain the method to measure the size of an Oleic acid molecule roughly.
Convert 1 Newton force into ‘Dyne’ by using dimensions.
The photograph of a house occupies an area of 1.75 cm 2 on a 35 mm slide. The slide is
projected on to a screen and the area of the house on the screen is 1.55 m 2. What is the linear
magnification of the projector- screen arrangement?
The centripetal force F acting on a particle moving uniformly in a circle may depend upon
mass (m), velocity (v) and radius (r) of the circle. Derive the formula for F using the method
of dimensions.
Convert energy of 1 Joule into ‘Erg’.
Write the following EXPERIMENTS in your Practical Record (Notebook):
1. To measure diameter of a small spherical/cylindrical body using Vernier Calliper.
2. To measure diameter of a given wire using Screw Gauge.
3. To determine radius of curvature of a given spherical surface by a Spherometer.
Chemistry
One Project on desired topic related to chemistry with its Applications
Student will learn all the topics taught related to
i)Some Basic Concepts of chemistry
ii)Structure of atoms
iii)Chemical bonding
0
Maths
Q1. Find the value of Cos (- 1710 ).
Q2. A wheel makes 360 revolutions in 1 minute. Through how many radians does it turn in 1 second
Q3. Find the angle between the minute hand and hour hand of a clock when the time is 7. 20.
Q4. Prove that Cot 4x (Sin 5x + Sin 3x) = Cot x (Sin 5x – Sin3x)
Q.5. Prove that Cos 200. Cos 400. Cos 600 Cos 800= 1/16
Q.6 Show that tan 3x. tan 2x. tan x = tan 3x – tan 2x – tanx
Q.7 Prove that
Sin (40 + θ). Cos (10 + θ) – Cos (40 + θ). Sin (10 + θ) = 1/2
Q.8 Prove that
Sin (n+1) x. Sin (n+2) x + Cos (n+1) x. Cos (n+2) x = Sin (x + y)
Q.9 If in two circles, arcs of the same length subtend angles 600 and 750
at the centre find the ratio of their radii
Q.10 Define polynomial function. Draw the graph of f(x)=x3
find domain and range
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Q.11 Find the domain and the range of F(x)= x2/1+x2
Q.12 If ∪= {a, e, i. o. u}
A = {a, e, i} And B = {e, o, u} C = {a, i, u}
Then verity that A ∩(B – C) = (A ∩B) – (A ∩C)
Q.13 In a town of 10,000 families, it was found that 40%families buy newspaper A, 20% families buy
newspaper B and 10% families buy newspaper C. 5% families buy A and B, 3% buy B and C and 4%
buy A and C. If 2% families buy all the three papers. Find the no. of families which buy
(i) A only (ii) B only (iii) none of A, B, and C.
Q.14 Let A, B and C be three sets A ∪B = A ∪C and A ∩B = A ∩C show that B= C
Q.15 In a survey of 60 people, it was found that 25 people read news paper H, 26 read newspaper T,
26 read newspaper I, 9 read both
H and I, 11 read both H and T, 8 read both T and I, 3 read all three newspaper. Find
(i) The no. of people who read at least one of the newspapers.
(ii) The no. of people who read exactly one news paper.
16.Write the following sets in the set-builder form:
(i) (3, 6, 9, 12) (ii) {2, 4, 8, 16, 32}
17. Make correct statements by filling in the symbols ⊂ or ⊄ in the blank spaces
(i) {x: x is a student of Class XI of your school} … {x: x student of your school}
(ii) {x: x is a circle in the plane} … {x: x is a circle in the same plane with radius 1 unit}
18. Find the intersection of the given sets:
A = {x: x is a natural number and multiple of 3}
B = {x: x is a natural number less than 6}
19. If G = {7, 8} and H = {5, 4, 2}, find G × H and H × G.
20. If A = {–1, 1}, find A × A × A.
21. Let A = {1, 2}, B = {1, 2, 3, 4}, C = {5, 6} and D = {5, 6, 7, 8}. Verify that
(i) A × (B ∩ C) = (A × B) ∩ (A × C)
(ii) A × C is a subset of B × D
22.Let A and B be two sets such that n(A) = 3 and n (B) = 2. If (x, 1), (y, 2), (z, 1) are in A × B, find A
and B, where x, y and z are distinct elements.
23. The Cartesian product A × A has 9 elements among which are found (–1, 0) and (0, 1). Find the
set A and the remaining elements of A × A.
24. Define a relation R on the set N of natural numbers by R = {(x, y): y = x + 5, x is a natural number
less than 4; x, y ∈ N}. Depict this relationship using roster form. Write down the domain and the
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range.
25. The given figure shows a relationship between the sets P and Q. write this relation
(i) in set-builder
builder form (ii) in roster form.
What is its domain and range?
26. Let R be the relation on Z defined by R = {(
{(a, b): a, b ∈ Z, a – b is an integer}. Find the domain
and range of R.
27. Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an
arc of length 22 cm
.
28. Find the value of the trigonometric function
29. Prove that
30. Find the value of:
sin 75°
31. Prove that
32. Prove that sin2 6x – sin2 4x = sin 22x sin 10x
33. Prove that cot x cot 2x – cot 2x cot 33x – cot 3x cot x = 1
34. Prove that: cos 6x = 32 cos6 x – 48 cos4 x + 18 cos2 x – 1
35. Find the principal and general solutions of the equation
36. Find the general solution of the equation
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37. Prove that:
38. Prove that:
39. Find
for
, x in quadrant II
40. Prove that:
Biology
Prepare a project file on
1) find pH value of various cold drinks like pepsi, mirinda, sprite, limca, and mangola with all details
2) find pH value of milk obtained from cow, baffallo, goat/camel and synthetic milk
Bio Technology
Prepare a project file on mendels law of dihybrid ratio
IInformatics Practics
Complete the questions on activity sheets
sheets:
1.
2.
3.
4.
5.
6.
7.
Determine the binary equivalent of 94.35 decimal number.
Determine the octal equivalent of 11001010111000 binary number.
Determine the hexadecimal equivalent of 132 octal number.
Determine the decimal equivalent of C26 hexadecimal number.
Add the 10101100 and 1110001 binary numbers.
Subtract the 1010 from 11001 binary numbers.
Find the 1’s and 2’s complement of 15.
Painting
1. Rajasthani School of Painting
Origin development, sub- School and main features .
2. Study of the following paintings
(a) Maru-Ragini
(b) Raja Aniruddha singh Hara
(c) Chaugan Players
(d) Krishna on swing
(e) Radha(Bani-Thani)
(f) Bharat meet Rama at Chitrakut
3. A Landscape painting (water colour)
4. A Still Life only drawing
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Physical Education
1. Changing trends and career in physical education.
2. Aims And objectives of physical education.
3. Concept and principles of intergrated physical education.
4. Career options in physical education.