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Question

The Einstein’s photo-electric equation is based upon the conservation of

A
Mass
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B
Momentum
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C
Angular momentum
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D
Energy
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Solution

The correct option is C Energy
Einsteins photoelectric equations states that
Ek=hνϕ
where, Ek is maximum kinetic energy of emitted photoelectrons
h is plank's constant.
ν is frequency of incident light
ϕ is work function of metal.
So, it is clearly based upon energy conservation.

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