Convergence of concave mirror can be decreased by dipping in

For Concave Mirror

The linear magnification of a concave mirror can be positive or negative. Why?

Concave mirror is called a converging mirror

We use concave mirrors as rear view mirrors.

Why is a concave mirror called converging mirror ?

How can you distinguish between a plane mirror, a concave mirror and convex mirror just by looking at them?

How can you distinguish between a plane mirror, a concave mirror and convex mirror just by looking at them ?