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Question

When light is incident on a metal surface the maximum kinetic energy of emitted electrons

A
Vary with intensity of light
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B
Vary with frequency of light
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C
Vary with speed of light
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D
Vary irregulary
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Solution

The correct option is D Vary with frequency of light
Photoelectric effect
KEmax=hvWo
where,Wo is the work function of the metal
Clearly KE varies linearly with the the frequency of the photons.

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