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Photoelectric Effect

State whether...

Question

State whether the given statement is true or false :

The kinetic energy of photoelectrons emitted by a photo-sensitive surface depends on the intensity of radiation.

A

True

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B

False

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Solution

The correct option is B False
Photo-electric effect :

$K E = h v - h v_{0} = h v - W$ where W is work function and constant for a metal surface.

By this equation, we can see that KE depends upon the frequency of photon only and increases with increasing frequency.

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