The speed of light in a vacuum is 3*10raised to 8 m/s. If the refractive index of diamond is 2.42, find the speed of light in a diamond.

Answers (1)

 refractive \ index=\mu =\frac{c}{v}

where 

c=speed of light in vacuum

v= speed of light in the medium

we get

v =\frac{c}{\mu }=\frac{3*10^8}{2.42}=1.24*10^8

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