For a fixed couple of medium and for light rays of fixed color incident obliquely, the ratio of sine of the angle of incidence to the sine of angle of refraction is a constant. This constant is known as refractive index of second medium with respect to first medium.
refractive index
8 years ago by asaduzzaman1975 (36)
I watched C-beams glitter in the dark near the Tannhauser gate.
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