Question

A S cm tall object is placed perpendicular to the principal axis of a convex lens of local
length 20 cm. The distance of the object from the lens is 30 cm. Determine position,
and size of the image.​

Answer 1

Explanation:

given ,

f=20cm

v=30cm

h'= S cm

object distance = -60cm ( using 1/f = 1/v- 1/u)