Snell's law

noun
\ ˈsnelz-\

Definition of Snell's law

: a law in physics: the ratio of the sines of the angles of incidence and refraction is constant for all incidences in any given pair of media for electromagnetic waves of a definite frequency

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History and Etymology for Snell's law

after Willebrord Snell van Royen (Willebrord Snellius) †1626 Dutch mathematician

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