A ray $O P$ monochromatic light is incident on the face $A B$ of prism $A B C D$ near vertex $B$ at an incident angle of $6 0^{o}$ (see figure). If the refractive index of the material of the prism is $3$ , which of the following is (are) correct?

Name: A ray OP monochromatic light is incident on the face AB of prism ABCD near vertex B at an incident angle of 60^o (see figure). If the refractive index of the material of the prism is √(3) , which of the following is (are) correct?
Uploaded: 2020-01-06
Description: Click here👆to get an answer to your question ✍️ A ray OP monochromatic light is incident on the face AB of prism ABCD near vertex B at an incident angle of 60^o (see figure). If the refractive index of the material of the prism is √(3) , which of the following is (are) correct?

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Answer 1

Using snell's law at surface AB, CD and AD
$s i n^{- 1} \frac{1}{3} < s i n^{- 1} \frac{1}{2}$
Net deviation is $9 0^{o}$

Answer 2

Using snell's law at surface AB, CD and AD

s i n^{- 1} \frac{1}{3} < s i n^{- 1} \frac{1}{2}

Net deviation is

9 0^{o}

A ray $O P$ monochromatic light is incident on the face $A B$ of prism $A B C D$ near vertex $B$ at an incident angle of $6 0^{o}$ (see figure). If the refractive index of the material of the prism is $3$ , which of the following is (are) correct?

The ray gets totally internally reflected at face CD

The ray comes out through face AD

The angle between the incident ray and the emergent ray is 90 $^{o}$

The angle between the incident ray and the emergent ray is 120 $^{o}$

Solution

Using snell's law at surface AB, CD and AD
$s i n^{- 1} \frac{1}{3} < s i n^{- 1} \frac{1}{2}$
Net deviation is $9 0^{o}$

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A ray OP monochromatic light is incident on the face AB of prism ABCD near vertex B at an incident angle of 60o (see figure). If the refractive index of the material of the prism is 3​, which of the following is (are) correct?

The ray gets totally internally reflected at face CD

The ray comes out through face AD

The angle between the incident ray and the emergent ray is 90o

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Video Explanation

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Net deviation is $9 0^{o}$

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