Question

Explain the behaviour of light rays in any four situations of their incidence of concave lens .

Answer 1

1) When light rays are parallel to the principal axis


2) When light rays passing through focus are incident on the lens

3) When light rays are incident at the pole of the lens

4) When light rays appear to converge at the focus

Answer 2

Answer:

1) When light rays are parallel to the principal axis

2) When light rays passing through focus are incident on the lens

3) When light rays are incident at the pole of the lens

4) When light rays appear to converge at the focus

Explanation:

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