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A ray OP of monochromatic light is incid...

A ray OP of monochromatic light is incident on the face AB of prism ABCD mear vertex B at an incident angle of `60degree` (see figure). If the refractive index of the material of the prism is `sqrt3`, which of the following is (are) are correct? `

A

The rays gets totally internally reflected at face CD

B

The ray comes out through face AD

C

The angle between the incident ray and the emergent ray is `90^(@)`

D

The angle between the incident ray and the emergent ray is `120^(@)`

Text Solution

Verified by Experts

The correct Answer is:
ABC
At point O `(1) "sin"60^(@) = sqrt(3) "sin"r implies r= 30^(@)`
At point L : TIR occurs : because `sqrt(3) "sin"45^(@) gt 1`
At point M : `sqrt(3) "sin" (30^(@)) = (1) "sin" theta implies theta = 60^(@)`
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