question_answer

Does the 'stopping potential' in photo- electric emission depend upon (i) the intensity of the incident radiation in a photocell? (ii) the frequency of the incident radiation?                

Answer:

                (i) No, the stopping potential does not depend on the intensity of the incident radiation. (ii) Yes, the stopping potential depends on the frequency of incident radiation. Above the threshold frequency, \[{{V}_{0}}\propto v.\]