Question

The figure shows a plot of three curves a, b,c showing the variation of photocurrent in collector plate potential for three different intensities I₁, I₂ and I₃ having frequencies v₁, v₂ and v₃ respectively incident on a photosensitive

surface. Point out the two curves for which the incident radiations have the same frequency but different intensities.

Answer 1

The curves a and b have the same frequency and different intensities I₃ and I₂. as the stopping potential for curves a & b is the same.