KENDRIYA VIDYALAYA SAWAI MADHOPUR
AUTUMN BREAK HOMEWORK
CLASS - XI
2015-16
English Core
Q1. (a) Read at least two short reports in any English newspaper. Cut and
paste them on your note-book. On the basis of your reading of these reports,
make notes on them in points only, using headings and sub-headings. Use
recognizable abbreviations wherever necessary.
(b) Make a summary of these passages in not more than 80 words and also
suggest a suitable title.
Q2. Draft a notice for your school notice board informing the students about
the magic show organized by your school in aid of victims of earthquake in
Nepal. You are Kartik / krati, secretary of Human Welfare Society, St. Marry
Public School, Palam, New Delhi.
Q3. You plan to sell your two-wheeler. Draft a suitable advertisement to be
published in the classified columns of a national daily. Give necessary details.
Q4. Design a poster on “SAVE EARTH” on behalf of the Pollution Control
Board, New Delhi.
Q5. Write an article in about 150 words on your life-style without the modern
gadgets.
Q6. What is the theme of ‘The Canterville Ghost’?
हिन्दी
प्रश्न
प्रश्न १ – निम्िनिनित पर फीचर
नििे
?
१- गुम होता बचपि
२- बढ़ता प्रदूषण
३- यह कै सा चुिाव
प्रश्न
२- निम्िनिनित पर निबंध नििे ?
१- भारत की नवदेश िीनत
२- जि सरं क्षण ,जि सक
ं ट
३- नवद्यानथियों के जीवि की चिु ौती
प्रश्न -३
नितीय इकाई का प्रश्न पत्र पत्र हि करे
प्रश्न -४ दस ( शरदावकाश ) नवशेष िबरों को सक
ं नित करे
Subject: - Physics
1. Why two holes are made to empty an oil tin?
2. Why mercury is used in barometer?
3. A barometer is accelerating downwards reads 76cm o Hg. What will
be the possible air pressure inside the jar?
4. Why two boats moving in parallel directions close to each other gets
attracted?
5. A big sized balloon of mass M is held stationery in air with the help of
a small block of mass M/2 tied to it by a light string such that both
float in mid air. Describe the motion of the balloon and the block when
the string is cut. Support your answer with calculations.
6. A spherical solid ball of volume V is made of a material of density ρ 1.
It is falling through a liquid of density ρ2 (ρ2 > ρ1). Assume that the
liquid applies a viscous force on the ball that is proportional to the
square of the speed v i.e., Fv = -kv2 (v>0).
7. A balloon filled with helium does not rise in air indefinitely but halts
after certain height. Explain why?
8. Describe the various factors which affect the surface tension of the
liquid.
9. If a number of little droplets of water, each of radius r coalesce to
form a single drop of radius R. Show that the rise in temperature will
be given by ∆𝜃 =
3𝜎 1
𝐽
1
[ − ] where 𝜎 is the surface tension of water
𝑟
𝑅
and J is is the mechanical equivalent of heat.
10.
A liquid drop of diameter D breaks up into 27 tiny drops. Find
the resulting change in energy. Take surface tension of the liquid as.
CHEMISTRY
1)Solve the question paper of ut 1 and ut 2.
2)Learn periodic table with names and atomic numbers
3)Learn the text of cations and anions in our syllabus.
4)Chapter 1 –question number 1.33 ,1.34,1.35.
Chapter 2-question number 2.30,2.31,2.62,2.66,2.67.
Chapter 4-vsert ,shapes of all types AB₂,AB₃,AB₄,AB₅,AB₆(with lone pairs
and without lone pairs),hybridization types with example ,mot diagram of
N₂,N₂⁺,N₂²⁺,O₂,O₂⁻,O₂²⁻,O₂²⁺
MATHEMATICS
Q1. In a group of students , 100 students knows Hindi , 50 know English and
25 know both .each of the students knows either Hindi or English . How many
students are there in the group ?
Q2. in a survey it was found that 21 people liked product A , 26 liked product
B, and 29 liked product C . if 14 people like product A and B , 12 peoplr liked
products C and A , 14 people like product B and C and 8 like all three products
. find how many liked product C only .
Q3. find the domain and range of the following rule function .
Q4 find the range of each of the following functions
f(x) = x2 + 2, x, is a real number
5.Prove that:
cos²x + cos²(x+π/3) +cos²(x-π/3)=3/2
6. prove that
(cosx-cosy)² + (sinx-siny)² =4sin² (x-y)/2
7. findsinx/2, cosx/2 and tanx/2 for sinx=1/4,x in quadrant II
8.(2n+7)<(n+3)²
9.Convert complex number in the polar form 1-і
10. To receive grade A in a course , one must obtain an average of 90
marks or more in five examination.If sunita’s marks in first four
examinations are 87 ,92,94 and 95, find minimum marks that sunita
must obtain in fifth examination to get grade A in course.
11. How many words with or without meaning can be made from the
letters of the word MONDAY, assuming that no letter is repeated , if
(i). four letters are used at a time (ii). All letters are used at a time
(iii) all letters are used but first letter is a vowel.
12. A bag contain 5 black and 6 red ball. Determine the number of ways
in which 2 black and three red balls can be selected.
13. Find the number of words with or without meaning can be made
using all letters of the word AGAIN. If these words are written as in a
dictionary, what will be the 50th word?
14. Show that:
is divisible by 64, whenever n is a positive integer.
15. Find the coefficient of x5 in the product (1 + 2x)6 (1 – x)7 using
binomial theorem.
16. Find the coefficient of x4 in the product (1 + 2x)4 (2 – x)5 using
binomial theorem.
17. Solve the given inequality for real x:
Computer Science
(Do all work in H/W copy)
XI Sc
Q1. A cloth showroom announced the following festival discounts on the
purchase of items, based on the total cost of items purchased-
Total Cost
Discount in purchase
Upto Rs. 2000
5%
Rs. 2001 to Rs. 5000
25%
Rs. 5001 to Rs. 10000
35%
Above 10000
50%
Write a C++ program to input the total cost and to compute and display the
amount to be paid by the customer after availing the discount.
Q2. To foster the sense of water conservation, the water department has an
annual water conservation tax policy. The rates are based on the water
consumption of the consumer. The tax rules are as follows :
Water consumed (in Gallons)
Tax Rate (in Rs.)
More than 45 but 75 or less
475.00
More than 75 but 125 or less
750.00
More than 125 but 200 or less
1225.00
More than 200 but 350 or less
1650.00
More than 350
2000.00
Write a program in C++ to compute and display an annual water tax chart based
on the input values of water consumption.
Q3. Mr. A.P.Singh is a software Engineer. He is designing an application to
calculate annual income tax based on annual salary received by the employee.
The tax calculation and rate is given in the table below:
Annual Salary
Rate of Income Tax
Upto Rs. 1,00,000
No Tax
Rs. 1,00,001 to Rs. 1,50,000 10% of the amount exceeding Rs. 100000
Rs. 1,50,001 to Rs. 2,50,000 Rs. 5000+ 20% of amount exceeding Rs. 150000
Above Rs. 2,50,001
Rs. 25000+ 30% of amount exceeding Rs. 250000
Write a C++ program to take salary as input and compute the income tax to be
paid by the employee.
Q4. Write a program to accept a number n and display all numbers that is divisible
by m upto n.
Q5. Write a program that display whether given number is prime or not.
Q6. Write a program to check whether given number is palindrome or not.
(hint : The number which is equal to the reverse of its number is a palindrome
number. E.g. num=565 reverse_Num=565 so it is palindrome )
Q7. Write a program to display all even numbers up to n.
BIOLOGY
DO ALL THE WORK IN HOME WORK COPY
Q1-ANSWER ALL THE QUESTIONS OF UNIT TEST II QUESTION PAPER .
Q2- WRITE NOTES ON DIFFICULT STAGES OF MITOSIS
Q3-DRAW WELL LABELLED DIAGRAMS OF DIFFERENT STAGES OF MITOSIS &
MEIOSIS.
Q4- WRITE TWICE THE FOLLOWING FROM THE PLANT PHYSIOLOGY UNIT :
I.
II.
III.
CYCLIC AND NON CYCLIC PHOTOPHOSPHORYLATION
CALVIN CYCLE
HATCH & SLACK CYCLE
BUSINESS STUDIES
1. Solve Model Sample question paper 2 given in the book. (Do it in notebook).
2. Solve of Model test paper 1 & 2.
ACCOUNTANCY
1. Learn value based question from the book.
2. Test of Chapters BRS, Depreciation and Provision an Reserve.
Economics
1) Prepare a project report on statistics of consumer awareness among
households.
OR
2) Prepare a project report on knowledge about inflation.
3) Study the chapter of ‘Measures of central tendency thoroughly. Learn the
formulas of Arithmetic mean, Median, Mode.
4) Explain the main objectives of globalization .
5) What is New economic policy? What are its main objectives ?
6) Globalisation is the outcome of liberalization and privatization strategies.
Explain.
7) Give the list of ‘navaratna companies' .
8) “In 1991,as an immediate measure to resolve the balance of payment crisis,
the rupee was devalued against foreign currencies “. What was its impact
on Indian economy at that time?