plz..xplain d concept of sin or theta related 2 refraction of light..
Asked by devarshee | 13th Mar, 2012, 09:00: PM
Expert Answer:
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 
as the angle measured from the normal, 
as the velocity of light in the respective medium (SI units are meters per second, or m/s) and 
as the refractive index (which is unitless) of the respective medium.
Answered by | 14th Mar, 2012, 11:35: AM
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