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A point source O kept at distance of 2R ...

A point source O kept at distance of 2R from pole P of concave interface having radius of curvature R emits a unidirectional beam at an angle of `30^@` to the principal axis PO. The distance of the image of point source O from pole P is

A

2R/3

B

R

C

`2R//sqrt3`

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
B
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