Question

Bouncing back of light in a given medium after striking a surface is called ______.

Answer 1

1. When a light ray beam traveling in a medium falls on a boundary of another medium it bounces back into the original medium. This bouncing back of light in the same medium is called a reflection of light.
2. The light that strikes the surface or mirror is called an incident ray.
3. The ray that bounces back from the surface is called a reflected ray.
4. The perpendicular drawn on the surface is called the normal.

Hence, bouncing back of light in a given medium after striking a surface is called reflection of light.