Question

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

32 cm

Answer

The focal length of a spherical mirror is equal to half the radius of curvature of that mirror.

The radius of curvature, R= 32 cm

Radius of curvature = 2 — Focal length (f)

R= 2f=

f = R/2 = 32/2 = 16

Hence, the focal length of the given convex mirror is 16 cm.​

Answer 1

The focal length of a spherical mirror is equal to half the radius of curvature of that mirror.

The radius of curvature, R= 32 cm

Radius of curvature = 2 — Focal length (f)

R= 2f=

f = R/2 = 32/2 = 16

Hence, the focal length of the given convex mirror is 16 cm.