The figure shows a plot of photocurrent versus anode potential for a photo sensitive 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 same frequency but of different intensities
C. Curves (b) and (c) represent incident radiations of different frequencies and different intensities
D. Curves (b) and (c) represent incident radiations of same frequency having same intensity

Answer

B

Explanation

Since, `V_0` is same for a and b, hence, their frequencies are same.
but current is different, hence intensities is different.