Question

define the radius of curvature of a spherical mirror find the nature and the focal length of a spherical mirror whose radius of curvature is + 24 cm​

Answer 1

focal length = r/2
24/2=12

Answer 2

Radius of curvature =24cm

we know that, focal length=radius of curvature/2

f=24/2

f=12cm

Radius of curvature:It is defined as the distance between the center of curvature and pole.

Since,in the question the radius of curvature is positive so it is the convex mirror..

Hope it helped