Question

Define convex and concave mirrors.

Answer 1

A curved mirror is a mirror with a curved reflecting surface. The surface may be eitherconvex (bulging outwards) or concave(bulging inwards). Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices.

Answer 2

Concave and convex mirrors are both parts of spherical mirrors. A concave mirror is curved inwards and the inner surface is the reflecting surface. A convex mirror is bulged outwards and the outer surface is the reflecting surface.