Question

What is the speed of light in diamond if absolute refractive of diamond is 2.4

Answer 1

Refractive index = Speed of light in vaccum or air / speed of light in medium .

Hence

u = c/v

=> 2.4 = 3*10^8/v

=> v = 3*10^8/2.4

=> v = 1.25*10^8 m/s

Therefore speed of light in diamond is 1.25*10^8 m/s .

Thank You Hope this will help you brother.