Question

The figure shows a plot of three curves a, b, c, showing the variation of photocurrent vs collector plate potential for three different intensities I₁, I₂and I₃ having frequencies v₁, v₂ and v₃ respectively incident of a photosensitive surface.

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

Answer 1

Curves a and b have the same frequency but different intensities.