Question

difference between concave or convex mirror?

Answer 1

concave is with inner curve
convex with outer curve

Answer 2

Concave mirror is that mirror in which the reflecting surface is inside the mirror and polished outside.....

It converges all the rays of light to the focus so it is also called as converging mirror....

Convex mirror is that in which the reflecting surface is outside of the mirror... And inside surface is polishes....

In diverges all the rays... Of light coming parallel to principal axis and from focus.... So it is also called diverging mirror....

Hope it helps...