question_answer

A beam of light of wavelength \[\lambda \] and with illumination L falls on a clean surface of sodium. If N photoelectrons are emitted each with kinetic energy E, then      [BHU 1994]

A)            \[N\propto L\] and \[E\propto L\]                                  

B)   \[N\propto L\]and \[E\propto \frac{1}{\lambda }\]

C)            \[N\propto \lambda \] and \[E\propto L\]                  

D)            \[N\propto \frac{1}{\lambda }\]and \[E\propto \frac{1}{L}\]