Q.

 In photoelectric effect, the photo-current

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a

 depends both on intensity and frequency of the incident photon

b

 does not depend on the frequency of photon but depends only on the intensity of incident light

c

 decreases with increase of frequency of incident photon
 

d

 increases with increase of frequency of incident photon

answer is C.

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Detailed Solution

By increasing frequency, the energy of incident photon is changed but the number of photons is not changed. To increase the photo-current, the number of electrons emitted per second should be increased. This can be done by increasing the incident intensity

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