A phot of energy `h upsilon` is absorbed by a free electron of a metal having work function `phi lt h upsilon`

Question

A phot of energy `h upsilon` is absorbed by a free electron of a metal having work function `phi lt h upsilon`

A phot of energy `h upsilon` is absorbed by a free electron of a metal having work function `phi lt h upsilon`
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 comes with a kinetic energy `(hv-w)`
D. It may come out with a kinetic energy less than `(hv-w)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
Photoelectric effect is a eandom phenomena. So, electron It may come out with a kinetic energy less than `(hv-w)` as some energy is lost while escaping out.

4 views Answered 2023-02-05 15:29