Question
Tue March 13, 2012 By: Devarshee

plz..xplain d concept of sin or theta related 2 refraction of light..

Expert Reply
Wed March 14, 2012

Snell's law states that the ratio of the sines of the angles of incidence and refraction is equivalent to the ratio of phase velocities in the two media, or equivalent to the opposite ratio of the indices of refraction:

with each \theta as the angle measured from the normal, v as the velocity of light in the respective medium (SI units are meters per second, or m/s) and n as the refractive index (which is unitless) of the respective medium.

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