1. Which one is not correctly matched?
2. Fathometer is used to measure?
3. Which one of the following is not a unit of heat?
4. The thermometer which is used to measure 2000°C temperature, is-
5. Stethoscope, used by doctors works on the principle of-
6. What is the unit of atmospheric pressure?
7. The intensity of earthquake is measured by:
9. Electron volt is a unit of:
10. Which one of the following is a reason why astronomical distances are measured in lightyears?
11. Centripetal force is responsible to
12. Decibel unit is used to measure-
13. Which of the following instruments is used for measuring the depth of the ocean?
14. When electrical energy converts into motion then-
15. Frequency is measured in___.
16. 1 Parsec, unit to measure astronomical distance, is equal to
17. Which one of the following is used for the information related to earthquake?
18. The equipment used to measure the intensity of sound is-
20. Which one of the following is not a unit of heat?
21. 'Ringelmann scale' is used to measure density of :
22. Which of the following is not a vector quantity?
23. The working principle of a washing machine is
24. The unit of electrical resistance of conductor is-
25. What is measured in hertz?
26. What is the SI unit of mechanical energy?
27. Which of the following pair is not correctly matched?
28. Which one of the following devices is used to measure extremely high temperature?
30. 'Periscope' instrument works on the principle of:
31. Which of the following is not correctly matched?
32. Which of the following SI units are not correctly matched?
33. Assertion (A) : Most of the time individual rain drops hit the earth’s surface with constant velocities. Reason (R): When an object falls through a viscous fluid, it attains a constant terminal velocity after sometime.
34. Which one of the following can be used to measure temperature above 1500°C?
35. Kilowatt- Hour is unit of______.
36. The device to measure electric current is_____.
37. Swimming is possible on account of which of the following
38. The speed of aircraft and ships are represented in knot. The speed of 100 knot will be-
39. The ‘parsec’ is the unit of ________.
40. Joule’ is related to ‘Energy’ like that ‘Pascal’ is related to-
41. The liquid used in simple barometer is/are
42. When a body falls freely towards the earth, then its total energy:
43. Relative humidity is measured by:
44. The four fundamental forces in the universe are-
45. Hypsometer is used to measure:
46. What is measured in Cusecs?
48. For every action there is an equal and opposite reaction. This law was given by:
49. Megawatt is unit to measure electricity which is-
50. Ball bearings are used in bicycles, cars, etc., because-
