A ray light from a liquid (mu=sqrt(3)) i...

A ray light from a liquid `(mu=sqrt(3))` is incident on a system of two right angled prism of refractive indices `sqrt(3) and sqrt(2)` as shown. The ray suffers zero deviation when emerges into air from CD. The angle of incidence I is

A

`45^@`

B

`60^@`

C

`30^@`

D

`90^@`

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A

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