question_answer

The frequency and work function of an incident photon are n and \[{{\varphi }_{0}}\]. If n­0 is the threshold frequency then necessary condition for the emission of photo electron is [RPET 2003]

A)            \[\nu <{{\nu }_{0}}\]        

B)            \[\nu =\frac{{{\nu }_{0}}}{2}\]

C)            \[\nu \ge {{\nu }_{0}}\]   

D)            None of these