Question

An object is placed at a distance of 12cm from a convex lens of focal length 8cm. Find the position of the image.​

Answer 1

Answer:

1/v + 1/u = 1/f

1/v + 1/-12 = 1/8

1/v -1/12 = 1/8

1/v = 1/8+1/12

1/v = (3+2)/24

1/v = 5/24

v = 24/5 cm = 4.8 cm