Question

5.
We are given a convex lens of focal length 20 cm. Draw ray diagrams to show
the nature, size and position of the image formed when the object is kept at a
distance of
(a) 55 cm (b) 35 cm (c) 15 cm
from the lens.​

Answer 1

Explanation:

It id hard to draw 55cm

If the focal length is 20 cm then 2F is at

(2x20) 40 cm.

This means the object is beyond 2F Therefore nature and position of image

1.Real

2.Inverted

3.Diminished

4.Formed between F and 2F