1. 'Periscope' instrument works on the principle of:
2. 1 Kg/cm² pressure is equivalent to:
3. Mercury is generally used in thermometer due to its characteristic of-
4. Hypsometer is used to measure:
5. The speed of aircraft and ships are represented in knot. The speed of 100 knot will be-
6. Which one of the following is used for the information related to earthquake?
7. When electrical energy converts into motion then-
8. Which of the following is not correctly matched?
9. Which one of the following can be used to measure temperature above 1500°C?
10. The velocity of wind is measured by_____.
11. Which of the following is not correctly matched?
12. Who is the first person to define speed?
13. The thermometer which is used to measure 2000°C temperature, is-
14. The intensity of earthquake is measured by:
15. Which instrument is used to measure atmospheric pressure?
16. The device to measure electric current is_____.
17. Which of the following instruments is used for measuring the depth of the ocean?
18. Which one of the following is a reason why astronomical distances are measured in lightyears?
19. The intensity of earthquake is measured
20. Which of the following SI units are not correctly matched?
21. Instrument used to measure the intensity of light is called______.
22. Which one is not correctly matched?
23. In how many cases can the three equations of motion be applied? (I) In one dimensional motion (II) In circular motion (III) Simple harmonic motion (IV) When acceleration is constant
24. The working principle of a washing machine is
25. Pascal is a unit of measuring:
26. How much is one barrel of oil approximately equal to?
27. One light year is equivalent to roughly how many kilometers?
28. The unit of electric power is _____.
29. 1 Km distance implies for-
30. The four fundamental forces in the universe are-
31. Which one of the following is not correctly matched?
33. Joule’ is related to ‘Energy’ like that ‘Pascal’ is related to-
34. 'Pyrheliometer' is used for measuring:
35. The ‘parsec’ is the unit of ________.
36. What is measured in Cusecs?
37. What is measured in hertz?
38. Centripetal force is responsible to
39. Swimming is possible on account of which of the following
40. Which one of the following is not correctly matched?
41. Kilowatt- Hour is unit of______.
42. For what ‘Ampere’ is used to measure?
43. Which unit of measurement is multiplied by 0.39 to convert it to ‘inches’?
45. Angstrom is a unit of____.
46. Decibel unit is used to measure-
47. Given below are two statements: Statement I: Force has magnitude as well as direction. Statement II: Sliding friction is smaller than static friction. In the light of the above statements, choose the most appropriate answer from the options given below:
48. Which one of the following is not correctly matched?
49. Ohm-meter is unit of____.
50. Ball bearings are used to convert static friction into
