Question

The frequency of incident light falling on a photo sensitive plate is doubled, then maximum kinetic energy of the emitted photoelectrons will become–

• A. 2 times of the earlier value
• B. More than 2 times of the earlier value
• C. Less than 2 times of the earlier value
• D. Unchanged

Answer 1

Answer: (B)

More than 2 times of the earlier value

Answer 2

KE_max = h(ν – ν ₀)

=