Question

If velocity of light in a medium is 2*10^8 m/s what is the refractive index of the medium

Answer 1

1.5 is the refractive index

Answer 2

velocity is 2×10^8 m/s

refractive index= (3×10^8 m/s)÷(2×10^8 m/s)

= 1.5

So the refractive index of the medium is 1.5 .