71.
Who is known as the 'father of quantum theory'?

72.
Which of the following occurred first ?

73.
Which of the following is not a valid conservation law of classical physics?

74.
Who among the following gave the Uncertainty principle?

75.
Who among the following is credited for the discovery of ''Expanding Universe"?

76.
Who gave black hole theory?

77.
The capacity of a water heater is measured in

79.
What is the unit of the physical quantity "Jerk"?

80.
What is the unit of relative density?