1.

What is photelectric effect ? Define (i) Stopping potential (ii) Photoelectric work function.

Answer» Photoelectric effect : The phnomenon of emission of electron by cetain substance (metal) when it is exposed to ratiation of suitable frequency is called photelectric effect.
(i) Stopping potential : the minimum negative potential given to the plate for which photoelectric current stops flowing is, called cut off or stopping potential.
(ii) Photoelectric work function : The minimum energy required to just remove an electron from the surface of a certain metal is called photoelectric work function.


Discussion

No Comment Found

Related InterviewSolutions