Question

The object initially at 36 cm from optical centre is shifted through 24 cm towards the lens. Which of the following is not a nature of the image formed? *​

Answer 1

Answer:

Given:u=−10cm f=20cm (convex lens)

To find: v and image's nature.

Solution: From lens formula

v

1

−

u

1

=

f

1

v

1

+

10

1

=

20

1

v

1

=

20

−1

v=−20cm

And magnification =

u

v

=2