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Malus' law
[ muh-loos law; French ma-lys ]
noun
, Optics.
- the law stating that the intensity of a beam of plane-polarized light after passing through a rotatable polarizer varies as the square of the cosine of the angle through which the polarizer is rotated from the position that gives maximum intensity.
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Word History and Origins
Origin of Malus' law1
Named after E. L. Malus (1775–1812), French physicist
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