photoelectric effect

noun

Definition of photoelectric effect

:the emission of free electrons from a metal surface when light strikes it

Recent Examples of photoelectric effect from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photoelectric effect.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of photoelectric effect

1892


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