Snell's Law Definition

snĕlz
noun
A law describing the refraction of a ray of light at the surface between two media, such that the product of the refractive index of the first medium and the sine of the angle of incidence equals the product of the refractive index of the second medium and the sine of the angle of refraction.
American Heritage
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Origin of Snell's Law

  • After Willebrord Snel van Royen (1580–1626), also called Willebrord Snellius, Dutch astronomer and mathematician who formulated the law

    From American Heritage Dictionary of the English Language, 5th Edition

  • For Willebrord van Roijen Snell Dutch mathematician

    From Wiktionary

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