Question

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Find the speed of light in diamond if its refractive index is 2.5

Answer 1

$\huge{\mathcal{\color{green}{SOLUTION !!!}}}$
$hi$

Answer 2

Given:

Refractive index of Diamond(n)=2.5

Let the speed of light in Diamond be 'x'm/sec.

Refractive index=Speed of light in vacuum/Speed of light in medium

2.5=3×10^8/x

x=3×10^8/2.5

x=1.2×10^8 m/sec

Therefore,

The speed of light in Diamond=1.2×10^8m/sec.