What is meant by photoelectric effect? Where is photoelectric effect used?
PHOTOELECTRIC EFFECT:
The peculiarity by which electrons are emitted from certain metal surface, when sufficiently high frequency electromagnetic radiations are allowed to incident on it.
Whenever a unit of light called a photon hits the material it can create a photoelectron in the material which can be distinguished as an electric current flow.
The photoelectric effect involves, irradiating a metal surface with photons of sufficiently high energy to eject the electrons from the metal.
The photoelectric effect occurs with photons having energies from a few electronvolt to over 1MeV
Where is photoelectric effect used?
The photoelectric effect phenomena (convert light into electricity) used to adjust the automatic Iris in various types of cameras,and; in solar cells.
The concept of wave-particle duality was developed because of the photoelectric effect.
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