Question

Find the focal length of a convex mirror whose radius of curvature is 32 cm.

Answer 1

Radius of curvature, R = 32 cm
Radius of curvature = 2 × Focal length (f)
R = 2 f
$f=\frac{R}{2}$
$=\frac{32}{2}=16$ cm
Hence, the focal length of the given convex mirror is 16 cm.