Question

draw a ray diagram to show the path of the refracted ray in each of the following cases.A ray of light incident on a concave lens is
1) passing through its optical centre.
2) parallel to its principal axis.​

Answer 1

Explanation:

(i) When a ray of light passing through its optical center, then the incident ray is refracted straight which is shown in following diagram:

(ii) When a ray of light is incident on a concave lens, parallel to the principal axis, then the ray diagram is as follows:

Answer 2

Explanation:

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