If the frequency of light incident on the cathode of a photo-cell is increased, how will the following be affected ? Justify your answer. (i) Energy of the photo electrons.

(ii) Photo current.

 

 
 
 
 
 

Answers (1)

i) The energy of the emitted photoelectrons increases

E_k=h\nu-\phi_0

ii) Photocurrent will not be affected

photocurrent depends upon the intensity of light and not
on frequency 

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