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Question
An equilateral prism is placed on a horizontal surface. A ray PQ is incident onto it. For minimum deviation:
An equilateral prism is placed on a horizontal surface. A ray PQ is incident onto it. For minimum deviation:
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Solution
The correct option is B QR is horizontal
For minimum deviation;
i = e and
r1=r2
for that; QR should be horizontal as the prism is equilateral.
QR is horizontal
For minimum deviation;
i = e and
r1=r2
for that; QR should be horizontal as the prism is equilateral.
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