Question

If the object is placed at a distance of 24 cm and image distance is 12 cm in front of a mirror, find the focal length of the mirror.

Answer 1

Answer:

u = - 24cm

v = 12cm

Mirror formula -> 1/f = 1/v+ 1/u

-> 1/12 - 1/24

1/f = 12/288

f = 288/12

f = 23cm

Since focal length is positive it would be a convex mirror.