First slide

Photo Electric Effect

Question

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

Easy

A

wavelength
B

frequency
C

amplitude
D

angle of'incidence

Solution

In photoelectric effect for a given photosensitive material, there exists a certain minimum cut-off frequency, called the threshold frequency, below which no emission of photoelectrons takes place no matter how intense the light is.

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