Question

Radius of curvature of a mirror is 30cm what type of mirror is it plz answer fast plz with explain

Answer 1

The type of mirror is convex. The reflecting surface of a covex mirror is bulged outward. So the focus and its radius is formed inside the mirror.By sign convention the measure of r is negative in case of concave mirror and positive in case of convex mirror. Here it is given r = +30 cm. This means that the mirror here is convex.

Answer 2

2f=30
f=30/2
=15

this is concave mirror