Question

A photon of energy hv is absorbed by a free electron of a metal having work function w < hv.

• A. The electron is sure to come out
• B. The electron is sure to come out with a kinetic energy (hv - w)
• C. Either the electron does not come out or it co~es with a kinetic energy (hv - w)
• D. It may come out with a kinetic energy less than (hv - w)

Answer 1

The correct option is D It may come out with a kinetic energy less than (hv - w)

A photon of energy hv is absorbed by a free electron of a metal having work function w < hv. Then It may come out with a kinetic energy less than (hv - w)