How can photons cause ionisation?
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1 Answer
Mar 14, 2018
Photoelectric Effect
Explanation:
Photons incident upon a medium can cause the spontaneous emission of electrons from the material (usually a metal) - as described by Albert Einstein in 1905.
the emission of electrons would qualify as the ionization caused by a photon. Read more about it here:
[Physlink.com](http://www.physlink.com/education/askexperts/ae24.cfm)
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