Question

a point source of light is taken away from the experimental setup of photoelectric effect. For this situation, mark out the correct statement(s)-

• A. Saturation photocurrent decreases
• B. Saturation photocurrent increases
• C. Stopping potential decreases
• D. Stopping potential increases

Answer 1

Answer: (A)

Saturation photocurrent decreases

Answer 2

As the source is taken away, the intensity of light reaching the target decreases and hence the photo current decreases. But as motion of the source does not affect frequency of light, the stopping potential given by V₀ =, remain the same.