Question

If intensity of incident light is increased in PEE then which of the following is true

• A. Maximum K.E. of ejected electron will increase
• B. Work function will remain unchanged
• C. Stopping potential will decrease
• D. Maximum K.E. of ejected electron will decrease

Answer 1

The correct option is B

Work function will remain unchanged

With the increase in intensity of light photoelectric current increases, but Kinetic energy of ejected electron, stopping potential and work function remains unchanged.