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66. Snell's law of refraction is true for angle A. O 90_°27.​

Answer»

-Snell's law, in optics, a relationship between the PATH TAKEN by a ray of light in crossing the BOUNDARY or surface of SEPARATION between two contacting substances and the refractive index of each. ... Snell's law asserts that n1/n2 = SIN α2/sin α1.



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