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Question

In a photo electric experiment, the maximum velocity of photoelectrons emitted

A
Depends on intensity of incident radiation
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B
Does not depend on cathode material
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C
Depends on frequency of incident radiation
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D
Does not depend on wavelength of incident radiation
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Solution

The correct option is D Depends on frequency of incident radiation
hv=hv0+KE
Kinetic energy of the photo electrons emitted depends on the frequency of incident light. More is frequency of incident light, more is the K.E. of emitted electron & therefore more is the velocity of emitted electrons.

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