If a ray of light passes from medium I to medium II without any change of direction, what can be said about the refractive indices of these media.
The two media have the same refractive index.

Question

If a ray of light passes from medium I to medium II without any change of direction, what can be said about the refractive indices of these media.

Philoid · Accepted Answer

The two media have the same refractive index.