Question

differences between absolute refractive index of medium and relative refractive index of two medium​

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.

Answer 2

Answer:

when we are measuring the refractive index with respect to vacuum, and we choose vacuum as the reference medium, we just call it as absolute refractive index. ... And when we measure the refractive index with respect to some other medium, we call it as relative refractive index.