Question

what is photoelectric effect? what is threshold frequency?​

Answer 1

This is to do with the Photoelectric effect. Threshold frequency is the minimum frequency of light that, when incident on a material, will eject a photoelectron. To calculate this, you will need the energy of the light incident on the material and the kinetic energy of the photoelectron ejected.

hope it helps u .....

Answer 2

Answer:

For a given surface, the emission of photoelectrons takes place only if the frequency of incident light is greater than a certain minimum frequency called the Threshold frequency.