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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