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A ray of light AO is vacuum is incident ...

A ray of light AO is vacuum is incident on a glass slab at angle `60^@` and refracted at angle `30^@` along OB as shown in the figure.The optical path light ray from A to B is :

A

`(2sqrt3)/a+2b`

B

`2a+(2b)/3`

C

`2a+(2b)/sqrt3`

D

`2a+2b`

Text Solution

Verified by Experts

The correct Answer is:
C
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