photoelectric effect


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photoelectric effect

n.
Ejection of electrons from a substance by incident electromagnetic radiation, especially by visible light.

photoelectric effect

n
1. (General Physics) the ejection of electrons from a solid by an incident beam of sufficiently energetic electromagnetic radiation
2. (General Physics) any phenomenon involving electricity and electromagnetic radiation, such as photoemission
References in periodicals archive ?
Reconstruction of the history of the photoelectric effect and its implications for general physics textbooks, Science Education, 94, 903-931, 2010.
The photoelectric effect, whereby electrons are ejected from a metal cathode by light to produce a current, can only be explained if we accept Plank's conclusion (as Einstein did) and only allow light to come in little packets, which we now call photons.
Experimental distinction between the quantum and classical field theoretic predictions for the photoelectric effect. Physical Review D, 1974, v.
Regarding the analysis of [mu] variation as a function of photon energy, the Rayleigh scattering and Photoelectric effect present [Z.sup.2-3] and [Z.sup.4-5] dependences and the energy region where the processes are dominant is <30 keV.
When X-ray photons and scintillation crystals interact with each other, due to photoelectric effect, Compton scattering, and electron pair effect, X-ray attenuation characteristics can be expressed as
The devices working based on photoelectric effect, in which light energy is converted into electricity, are termed as photoelectric devices.
The disk's dust absorbs starlight, making it cast off electrons via the photoelectric effect. These electrons collide with gas molecules, heating the gas and making it expand.
For example, he said: "We should take care not to make intellect our god; it has, of course, powerful muscles, but no personality." The man best known for his mass-energy equivalence formula and his discovery of the law of the photoelectric effect, said what many people who spend all day living the creativity of advertising have never even thought of, let alone practice.
Einstein also won the coveted prize not for Relativity but ironically for Photoelectric Effect. Irony has been part of physics in its history.
PSD diodes utilise a local photoelectric effect to detect the position of a spot illuminating the surface of a diode.

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