Question

Give any two uses of concave mirrors.

Answer 1

1. A spherical mirror whose outer surface is polished and the inner surface behaves as the reflecting surface is called a concave mirror.
2. Concave mirrors are used as make-up mirrors at beauty parlours, and as shaving mirrors, because they form an erect and enlarged image of the face of a person situated just near the mirror.
3. Concave mirrors are widely used in headlights of automobiles and motor vehicles, torchlights, etc. as reflectors.
4. The light source is placed at the focus of the mirror, so after reflecting the light rays travel over a huge distance as parallel light beams of high intensity.

Thus, we use concave mirrors in makeup mirrors and headlights of vehicles.