The figure shows a photo cell circuit. The cathode of the photo cell is illuminated by a monochromatic light. If the intensity is kept constant and the frequency of the incident light is increased, then the. Image
Select all that apply

Question

The figure shows a photo cell circuit. The cathode of the photo cell is illuminated by a monochromatic light. If the intensity is kept constant and the frequency of the incident light is increased, then the. Image

Select all that apply

G1 Physics · Accepted Answer

At fixed intensity, increasing frequency increases energy per photon, so photon flux and hence photocurrent decrease. Einstein's equation Kₘₐₓ = hν−φ shows that the maximum photoelectron kinetic energy increases. With reverse bias, a sufficiently large stopping potential can reduce the current to zero. Correct answer: B, C, D.