Question

if t and t be the times taken by light to cover the same distance in vacuum and a medium of refractive index m respectively, then the time t will be equal to​

Answer 1

Answer:

Relative refractive index: When light travels from one medium to another medium, then the refractive index is known as the relative refractive index. Absolute refractive index: When light travels from vacuum to another medium, then the refractive index is known as the absolute refractive index.

Explanation:

Refractive index is the ratio of the speed of light in vacuum to the speed of light in the given medium and it is denoted by ′μ′. ... Unit of refractive index (μ) will be the ratio of the unit of speed of light in vacuum(c) to the speed of