Question

The Refractive index is a measure of the ___________ of light when a ray travels from one medium to another.

Answer 1

1. When light travels from one medium to another medium the light gets refracted and it bends away or towards the normal.
2. Refractive index is given as, $RI=\frac{speedoflightinvacuume}{speedoflightinmedium}$.
3. So the refractive index is the measure of bending of light when passing from one medium into another.

Hence, the Refractive index is a measure of the bending of light when a ray travels from one medium to another.