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CBSE Class 9 Answered

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Asked by | 18 May, 2009, 07:00: PM
answered-by-expert Expert Answer

The photoelectric effect refers to the emission, or ejection, of electrons from the surface of, generally, a metal in response to incident light.

Energy contained within the incident light is absorbed by electrons within the metal, giving the electrons sufficient energy to be 'knocked' out of, that is, emitted from, the surface of the metal.

Answered by | 18 May, 2009, 08:05: PM

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CBSE 9 - Physics
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