Question

why does refraction occur?​

Answer 1

Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. Light is refracted when it crosses the interface from air into glass in which it moves more slowly.

Answer 2

Answer:Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another..

Explanation:Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. Light is refracted when it crosses the interface from air into glass in which it moves more slowly..