Beer–Lambert law

noun Beer–Lam·bert law \ˈber-ˈläm-ˌbert-\
variants: less commonly

Beer–Lambert's law

Definition of Beer–Lambert law


  1. :  beer's law Absorption spectrophotometry is concerned with the absorption of incident radiation, as a function of wavelength, upon passage through a given medium. Its use in quantitative analysis is founded upon the Beer-Lambert Law which relates the amount of radiation absorbed at a given wave length to the concentration and length of the absorbing path. — Tom D. Schlabach, Encyclopedia Of Chemistry, 1966

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Origin and Etymology of beer–lambert law

after Johann Heinrich Lambert †1777 Swiss-Alsatian mathematician and physicist, whose formulation of light absorption in a dense material is complementary to Beer's law

First Known Use: 1908

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a rounded knoll or a ridge of ice

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