Question

radius of curvature of a mirror is 20 cm. What type of mirror is it?​

Answer 1

Answer:

Concave or a spherical mirror

Explanation:

The radius of curvature is 20 cm

so focal length will be f=20/2 which is equal to 10 cm

so focal length of the mirror will be 10 cm and that's why it

is a concave or a spherical mirror.

Hope it helps you!

Answer 2

Answer:

Spherical Mirror

Explanation:

r = radius of curvature

Focal length f = r/2 = 20/2

F

f = 10cm