Question

Refractive index of two material medium x and y are 1.3 and 1.5. In which of the two,the light would travel faster?

Answer 1

Answer:

light would be faster in medium x

Explanation:

refractive index is inverse proportional to speed of light in a medium

Answer 2

Answer:

Medium x

Explanation:

n =c/v.

Where n = refractive index

c=speed of light in vacuum

v= speed of the particle

Thus, refractive index is inversely proportional to the velocity or speed

As x has lesser refractive index it will have greater speed.