Question

33. Explain the behaviour of light rays in any four situations of their incidence on a convex
lens.​

Answer 1

Answer:

1) When light rays are parallel to the principal axis: ... Since the rays converge, the image formed is point-size, which is highly diminished. 2) When light rays passing through focus are incident on the lens: In this case, the light after an incident on the lens becomes parallel to the principal axis.