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Wave nature of particle was given by:
Clinton S. Davisson
Clemensen
Laster H. Germer
Louis de Broglie
Unit of Stephen’s constant is
W m-2 K-4
None
W m K-2
W m K-4
Which one of the following physical quantities change with relativistic speed?
All of above
Mass
Time
Length
Minimum energy needed to escape an electron ofrm metal surface is called:
Threshold energy
Work ability
Work function
Threshold frequency
The emission of electrons from metal surface when exposed to light is called:
None of above
Pair production
Compton effect
Photoelectric effect
The concept of direction is purely
Relative
Relative to the motion
None of these
Absolute
The unit for Plank’s constant is:
Js
Js-1
Jm2
Jm
Albert Einstein got noble prize for service in:
Pair production
Photoelectric effect
Annihilation of matter theory
Compton effect
The minimum frequency needed to emit an electron form metal surface is called:
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