Question

a convex lens produces a real image which is 1/3 rd the size(height) of the object. If the focal length of the lens is 20 cm, then find the object distance and also calculate the object distance if the focal length of the lens was 40 cm.

Answer 1

Answer:v= 80/3 v=160/3

Explanation:

Answer 2

Answer:

distance is 24 cm from the lens

Explanation: