Question

An object is placed perpendicular to the principal axis of a
convex lens of focal length 8cm. The distance of the object from the
lens is 12cm. Find the position and nature of the image.​

Answer 1

Given:

f=+8cm

u=-12cm

v=?

Now,

1/v-1/u=1/f

1/v=1/8-1/12

1/v=1/24

v=24cm

Therefore,the position of the image will be 24cm from the lens.

Nature of the image will be real and inverted.