Question

At what distance the object should be placed so that the image will be formed at a distance 10 cm to the left of a concave lens? Focal length of the lens is 20 cm.


1.the object should be placed 20 cm from the concave lens on the right side of the lens.
2.the object should be placed 20 cm from the concave lens on the left side of the lens.
3.the object should be placed 40 cm from the concave lens on the right side of the lens.
4.the object should be placed 40 cm from the concave lens on the left side of the lens.

Answer 1

Answer:

At what distance the object should be placed so that the image will be formed at a distance 10 cm from a concave lens? Focal length of the lens is 20 cm.

Explanation:

hope it will help you