The focal length and radius of curvature are related by the formula
f=2r
f=1r
r=2f
r=f2
or,
f=r2
Hence, option C is correct.
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror) ? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
What is the relation between the focal length and the radius of curvature?
The focal length f is related to the radius of curvature r of the spherical convex mirror by: