Physics-Objective Related Question Answers

26. Higgs Boson was discovered at?

CERN

27. The Indian scientist related to the term Boson?

Sathyendra Nath Bose

28. Unit of work is?

louie or Nm

29. In CGS System the unit of work is?

erg [1 joule = 10^7erg]

30. The rate of doing work is called?

Power [Power = Work/Time]

31. Unit of power is?

Watt or joule/sec

32. Power is a?

scalar quantity

33. Power is Measured in?

Horse power [1 Horse power =746 watt]

34. The capacity to do a work is called?

Energy

35. Unit of energy is?

Joule

36. The energy developed on a body when a work done on that?

Mechanical energy

37. Two types of Mechanical energy are -?

Kinetic energy and Potential energy

38. Energy possessed by a body due to its motion is called?

Kinetic Energy

39. If velocity is doubled, kinetic energy become?

Four times

40. If the mass of a moving body is doubled, its kinetic energy is?

Doubled

41. Energy possessed by a body, by virtue of its position is called?

Potential Energy [PE = mgh ] [m=mass; g = acceleration due to gravity; h = height]

42. Energy stored in a compressed string is?

Potential Energy

43. Energy stored in a water reservoir is?

Potential Energy

44. Potential energy of an object at a ground level is?

Zero

45. Potential energy increases as the height?

Increases

46. When a free falling object approaches the earth, its potential energy?

Decreases

47. Law of Conservation of Energy is put forward by?

Albert Einstein (E =mc2 (m = mass; C = Velocity of light)

48. Einstein proposed the Special Theory of Relativity in?

1905

49. Einstein proposed the General Theory of Relativity in?

1915

50. The change in posltion of an object over time is called?

Motion
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