Class- 10th
Year:-2017-2018
Holiday
Home work
Maths
1. Show that any positive odd integer is of the form 96+1 or 69+3 or 69+5 where 9 is same integer.
2. Use Euclid’s division lemma to show that the square of any positive integer is either of the form 3 m or 3m+1 for same
integer.
3.Prove that 2, 3, 5, 7, and 11 are irrational number.
4
3
2
4. Obtain all other zeros of 3x  6 x  2 x  10 x  5 . If tow its zeroes are
5
5
.
and 
3
3
3
2
5. If the zeroes of polynomials x  3x  x  1 are a-b, a and a+b find a and b.
4
3
2
6. If tow zeroes of polynomials x  6 x  26 x  138 x  35. are 2  3, find other zeros.
7. If the polynomial x  6 x  16 x  25 x  10 is divided by another polynomial x  6 x  16 x  25 x  10 is divided by
another polynomial x 2  2 x  k , The remainder camas ant to be x+9, find k and 9.
8. In OPQ , right- angled at P, OP=7 cm, and OQ-PQ=1 cm Determine the value of sin  and cos  .
9. Given 15 cot A= 8. Find sinA and SecA
10. If Aand B are a cute angles such that cosA =cosB. Then show that  A=  B
4
3
2
4
3
2
7
1  sin  1  sin  
8
1  cos  1  cos  
12. In PQR , right – angled at Q, PR+QR=25 cm and PQ= 5 cm, Determine The values of sinP cosPand  anP.
13. If B and Q are acute angles such that sin B= sinQ Then prove that B  Q .
4
14. Given Tan A= find the values of sinA and cosA.
3
1  Tan 2 A
15. If 3 cot A=4. Find the value of
.
1  Tan 2 A
2
16. If  and  are zeros of the quadratic polynomial f ( x)  ax  bx  c Then evaluate the following.
1 1
1 1
1 1
(i )   
(iv) 2   2
(vi)  4   4
(ii ) 
(iii)   2
(v)   2
11. If cot  = , Evaluate (i)






17. If sum of the squares of zeros the quadratic polynomial f(x) = x  8 x  is 40. Find the value of k.
2
4
3
2
18. Find all zeros of the polynomial 2 x  7 x  19 x  14 x  30. if two of its zeros are 2 and  2 .
3
2
19. Find all the zeros of paly. 2 x  x  6 x  3. if tow of its zeros are  3 and 3 .
n
20. Solve graphically the system of eq s
x y 3
3x  2 y  4
21. Solve
2x  3y  0
3x  8 y  0
99 x  101 y  499
22. Solve
101x  99 y  501
2
2
23. Solve mn  xy  m  n
x  y  2m
ax by

 a  b.
24. Solve
b
a
x y
 2
25. Solve a b
ax  by  a 2  b 2
 a  b x   a  b y  a 2  2ab  b 2
26. Solve
 a  b x  y   a 2  b 2
.
Physics
1. What is electric current? Write equation.
2. How much electron consist one coloumb of charge. Calculate it by formula.
3. What is ohm’s law? Explain it on V-I graph.
4. Write short note on (in 30 words)
(a) Electric circuit
(b) Electric potential (c) Electric charge
(d) Resistance.
5. Solve numerical question By- S. Chand, NCERT (H.C.VERMA (Only by topic discussed)
6. Drive Eqn for parallel combination & series combination of Resistor.
Chemistry
1. Write Basic and Acidic radicals with name and symbol.
2. Write down about 50 molecules and their molecular formula.
3. Write down 50 balanced chemical reactions.
4. Write down types of reaction with definition and examples.
5. Write short notes on corrosion and Rancidity.
6. Write word meaning of ch-1,2,3,4.
Biology
1. How is inhaled air different from exhaled air? Describe briefly the function of lungs
2. How are the alveoli designed to maximize the Exchange of gases.
3. How to provide that chloroplast and sun light mercenary for photosynthesis.
4. Describe in brief the different mode of nutrition found in living organism:
English
1. Write a biography of William Words Worth with picture.
2. Sort out crucial English words given in your text book and memorize them appropriately.
3. Prepare a complete chart of tense indicating all details
4. Write a short note on the life of A.P.J. Abdul Kalam.
S. Science
1.Prepare project on (any two topics) :(i)Save water
(ii)Save tree
(iii)Save Energy
(iv) Save money
2. Prepare a detailed communication plan for safety against a disaster.
3. “ Power is shared between social groups.” Comment on this statement with the help of examples.
4. What do you understand by sustainability of development? What can we done to make development sustainable.
10th - sanskrit
HOLIDAY HOMEWORK
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10th - HINDI HOLIDAY HOMEWORK
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