Question

Define refraction.

Answer 1

1. The bending of a ray of light obliquely on an interface when it passes from one medium to another is called refraction.
2. Refraction is the bending of a ray of light when it enters a medium where its speed is different.
3. Refraction occurs due to changes in the medium optically.
4. Examples of refraction: Twinkling of stars in the sky, rainbow formation in the sky, pool of water appears to be less deep than what it is, etc.