Question

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

Answer 1

Answer:

When a light wave pass from I to medium I, and continue in the same direction as a refracted ray, then it will make its own angle of refraction, which is the angle between the refracted ray and the normal line, in this case the refractive indices of both the mediums will be same so the light ray will not change its

Answer 2

Answer:

it san be said that the refractive indexes are same .

Explanation:

because the ray of light will change its direction only whern there is a difference in the refractive indxes of the two medium.