PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation
Problem
In a photoelectric experiment, the intensity of monochromatic light incident on a metal surface is doubled while its frequency (greater than threshold frequency) is kept unchanged. Which change will be observed in the I–V characteristic curve?
(a) Both saturation photocurrent and stopping potential double
(b) Saturation photocurrent doubles, stopping potential remains the same
(c) Both saturation photocurrent and stopping potential remain the same
(d) Saturation photocurrent remains the same, stopping potential doubles