Light enter from air to diamond, which has a refractive index2.42. What is the speed of light in a diamond?

Answers (1)
S safeer

Refractive index = c/v, where c is the speed of light in the vacuum and v is the speed of light in the medium.

v=c/n=\frac{3\times10^8}{2.42}=1.24\times10^8m/s

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