Question

The speed of light in a medium of refractive index n is....., where c is speed of light in vacuum​

Answer 1

Answer:

"c" is the speed of light in a vacuum

Explanation:

use a formula. "n = c / v" "c" is the speed of light in a vacuum, "v" is the speed of light in that substance and "n" is the index of refraction. According to the formula, the index of refraction is the relation between the speed of light in a vacuum and the speed of light in a substance. But what is refraction? When light moves from one substance to another it changes speed and direction. That change in direction is called refraction.