what is threshold frequency what is the effect of photoelectric effect

what is threshold frequency 
what is the effect of photoelectric effect


1 Answers

Physics Expert
askIITians Faculty 71 Points
6 years ago
The minimum frequency of the electromagnetic radiation which is required to eject the electrons from the surface of the metal is termed as the threshold frequency.

The emission of the electrons form the surface of the metals by the use of the light energy is known as the photoelectric effect.
The mathematical expression of the photoelectric effect of the photon is
Here we can see that the frequency of the striking photon is directly proportional to the thresold frequency.Hence, the photoelectric effect increase the threshold frequency.

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