The figure shows a plot of photo current versus anode potential for a photosensitive surface for three different radiations. Which one of the following is a correct statement ?

Options

A. Curves `a` and `b` represent incident radiations of different frequencies and different intensities
B. Curves `a` and `b` represent incident radiations of the same frequency but no different intensities
C. Curves `b` and `c` represent incident radiations of different frequencies and different intensities
D. Curve `b` and `c` represent incident radiations of the same frequency having the same intensity

Answer

B

Explanation

From the two graphs we can conclude that for the graph in question curves `a` and `b` represent incident radiations of the same frequency but of different intensities.