66. Snell's law of refraction is true for angle
A. O<i<90_•°
B. O< i < 60_°
C. 30 < i < 90_°
D. O >i > 90_°27.
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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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