Question

A 5cm tall object is placed perpendicular to principal axis of convex lens of focal length 20cm. the distance of object from lens is 30 cm find distance of image (v)​

Answer 1

Answer:

v = -60

Explanation:

1/u - 1/v = 1/f

1/30 - 1/v = 1/20

1/30 - 1/20 = 1/v

- 1/60 = 1/v

v = -60