Question

If the refractive index of diamond is 2.42 and the speed of light in air is 3.0.how is this possible that the answer is 1.24

Answer 1

SEE

refractive index(of a substance) =

speed of light in vacuum / speed of light in that medium

We know Diamond refractive index = 2.42

And speed of light in vacuum = 3X10^8m/s

So,

speed of light in diamond = 3x 10^8 / 2.42

= 1.24 x 10^8 m/s

THANKS:)