Question

give scientific reson.

if the speed of light in a medium is 1.5x10 8 m/s, what is the absolute refractive index of the medium (velocity of light in vacuum 3x10 8 m/s)​

Answer 1

2 × 108 m/s. The Refractive index of a medium is defined as the ratio of the speed of light in a vacuum to the speed of light in the medium. Refractive index (n)= c/v, where c is the velocity of light in a vacuum ( 3 × 108 m/s) and v is the velocity of light in a substance.