Question

what is the speed of light in diamond

Answer 1

Antara, The index of refraction is defined as the ratio of the sped of light in a vacuum to the speed of light in the meduiu of interest, in the is case diamond. So n=c/v, n= index, c=speed of light and v= speed of light in diamond. 2.42=c/v so v=c/2.42, c≈3x108 m/sec so v=1.24x108 m/sec





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Answer 2

The speed of light in diamond is 1.24 x 108 m/s.