Question

- A convex lens of power 3D is held in contact with a concave lens of power-I D.
A parallel beam of light is made to fall on the combination. At what distance from
the combination will the bean get focussed?​

Answer 1

Answer:

l don't know the answer

Explanation:

please mark me as brilliant

Answer 2

Answer:

behind the convex lens the combination of beam is focused