Question

explain how concave and convex mirror s are formed​

Answer 1

Explanation:

Convex Mirror

If the other cut part of the hollow sphere is painted from inside, then its outer surface becomes the reflecting surface. This kind of mirror is known as a convex mirror. A convex mirror is also known as a diverging mirror as this mirror diverges light when they strike on its reflecting surface.

Concave Mirror

If a hollow sphere is cut into parts and the outer surface of the cut part is painted, then it becomes a mirror with its inner surface as the reflecting surface. This kind of mirror is known as a concave mirror.