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Paragraph-II (Q.Nos 43 to 45) :
A ray of light is incident normally on one face of an isosceles prism such that after suffering total internal reflection twice inside the prism, it emerges normally from its base. Then answer, the following questions.
A ray of light is incident normally on one face of an isosceles prism such that after suffering total internal reflection twice inside the prism, it emerges normally from its base. Then answer, the following questions.
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Question : 45
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