Question

A pin of length 9 cm has been placed infront of a convex mirror of focal length 20 cm. The distance of the object from the pole is 10 cm. Find the size of the image (in cm)

Answer 1

by using mirror formula 1/f=1/v+1/u, we get

v=20/3

h(image)/h(object)=-v/u

h(image)= 6cm