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SNELL'S LAW - n' = refractive index of the denser medium. n = refractive index of the rarer medium. i = ray angle with normal in rarer medium. r = ray angle with normal in denser medium.
Herman C. Schepler
"Photo - Optics Note Book 24. Optical Formulary," Optical Engineering 7(1), 070124 (1 November 1968). https://doi.org/10.1117/12.7971499
Published: 1 November 1968
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