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- Question 1 of 50
1. Question
The atmosphere is heated mainly by
- Question 2 of 50
2. Question
A device used for converting a.c. into d.c. is called
- Question 3 of 50
3. Question
Energy of Ultraviolet rays is greater than
- Question 4 of 50
4. Question
To an astronaut sky appear
- Question 5 of 50
5. Question
The instrument used to measure the speed of the wind is
- Question 6 of 50
6. Question
Who defined the law of gravitation?
- Question 7 of 50
7. Question
The metal used to make lightning conductors is
- Question 8 of 50
8. Question
‘IC’ in computers stands for
- Question 9 of 50
9. Question
A hydrogen balloon floats up because of
- Question 10 of 50
10. Question
In a rechargeable cell what kind of energy is stored within the cell?
- Question 11 of 50
11. Question
Which one of the following lenses should be used to correct the defect of astigmatism?
- Question 12 of 50
12. Question
Superconductors are those elements
- Question 13 of 50
13. Question
Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate
- Question 14 of 50
14. Question
In a Laser (say neon laser) all the atoms emit the light waves of
- Question 15 of 50
15. Question
Which of the following has got more heat capacity
- Question 16 of 50
16. Question
Of the following Indian satellites, which one is intended for long distance telecommunication transmitting TV programmes?
- Question 17 of 50
17. Question
What is the full form of ‘AM’ regarding radio broadcasting?
- Question 18 of 50
18. Question
Which colour is the complementary colour of yellow?
- Question 19 of 50
19. Question
During washing of clothes, we use indigo due to its
- Question 20 of 50
20. Question
The energy stored in a watch spring is
- Question 21 of 50
21. Question
Which one of the following acids is used in battery?
- Question 22 of 50
22. Question
The sensation of weightlessness in a spacecraft in an orbit is due to the
- Question 23 of 50
23. Question
‘Therm’ is the unit of
- Question 24 of 50
24. Question
Cream gets separated out of milk when it is churned. This is due to
- Question 25 of 50
25. Question
Newton’s first law of motion gives the concept of
- Question 26 of 50
26. Question
The process by which sun’s rays reach the earth is
- Question 27 of 50
27. Question
A pond of water appears less deep due to
- Question 28 of 50
28. Question
The oldest type of energy known to man is
- Question 29 of 50
29. Question
Water pipes in hilly areas often burst on a cold frosty night, beep use
- Question 30 of 50
30. Question
A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because
- Question 31 of 50
31. Question
Which of the following instruments is used to measure relative humidity?
- Question 32 of 50
32. Question
The period of revolution of a geostationary satellite is
- Question 33 of 50
33. Question
The type of mirrors used in the headlamp of cars is
- Question 34 of 50
34. Question
The reason for a swimming pool to appear less deep than the actual depth is
- Question 35 of 50
35. Question
Alternating current is converted into direct current by a
- Question 36 of 50
36. Question
Flat footed camels can walk easily in sandy deserts because
- Question 37 of 50
37. Question
Which of the following is most elastic?
- Question 38 of 50
38. Question
When a person walking in bright Sunlight enters a dark room, he is not able to see clearly for a little while because
- Question 39 of 50
39. Question
The swing of a spinning cricket ball in air can be explained on the basis of
- Question 40 of 50
40. Question
The freezer in a refrigerator is fitted near the top
- Question 41 of 50
41. Question
Why two thin shirts can keep us warmer than a single thick shirt in winter?
- Question 42 of 50
42. Question
Sound cannot pass through
- Question 43 of 50
43. Question
Water is not effective in extinguishing a fire caused by petrol because
- Question 44 of 50
44. Question
An egg sinks in soft water but floats in a concentrated solution of salt because
- Question 45 of 50
45. Question
What should a person on a freely rotating turn table do to decrease his (angular) speed?
- Question 46 of 50
46. Question
Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy?
- Question 47 of 50
47. Question
Which of the following circuit elements is used to ‘block DC in an electronic circuit?
- Question 48 of 50
48. Question
Spectacles used for viewing 3D films have
- Question 49 of 50
49. Question
A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls
- Question 50 of 50
50. Question
Detergents clean surface on the principle of