Question

The refractive index of diamond is 2.47 and the speed of light in air is 3×100000000 ms-1 calculate the speed of the light in diamond

Answer 1

Diamond’s typical refractive index is 2.42, so v=3.10^8/2.42= 1.24.10^8 m/s.

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Answer 2

Answer:

ng=c/v

2.47=3×10 power eight/

VG

vd=1.20m\sec