# Photoelectric emmision occurs only when the incident light has more than a certain minimum Option 1) power Option 2) wavelength Option 3) intensity Option 4) frequency

P Prateek Shrivastava

As we discussed in concept

Threshold frequency -

The minimum frequency of incident radiation to eject electron is threshold frequency ($\nu_{0}$)

- wherein

If incident frequency $v< \nu _{0}$

No photoelectron emission

Photoelectrons emitted when incident light has energy or frequency more than a certain minimum value caused threshold frequency.

Option 1)

power

This option is incorrect.

Option 2)

wavelength

This option is incorrect.

Option 3)

intensity

This option is incorrect.

Option 4)

frequency

This option is correct.

Exams
Articles
Questions