What is photoelectric effect.
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photoelectric effect. The emission of electrons from a metal when light shines on it. The effect is widely used to convert a light signal into an electric current (see also current).
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The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material. Electrons emitted in this manner are called photoelectrons. This phenomenon is commonly studied in electronic physics and in fields of chemistry such as quantum chemistry and electrochemistry
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