Photoelectric emission occurs only when the incident light has more than a certain minimum

In photoelectric effect, electrons are ejected from metals, if the incident light has a certain minimum

In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum.

In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum.

The photoelectric emission from a surface starts only when the light incident upon the surface has certain minimum

The photoelectric emission from a surface starts only when the light incident upon the surface has certain minimum:

The photoelectric emission from a surface starts only when the light incident upon the surface has certain minimum:

The photoelectric emission from a surface starts only when the light incident upon the surface has certain minimum:

In photoelectric effect for emission of electron incident light should have minimum ……