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JEE PHYSICS MCQ: RAY OPTICS

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Understanding +4 | -1
Assertion (A): Shining of diamond is due to the phenomenon of total internal reflection

Reason (R): Refractive index of diamond is large. hence critical angle is small.
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Correct option: A
If both assertion and reason are true and reason is a correct explanation of the assertion.
Option A (If both assertion and reason are true and reason is a correct explanation of the assertion) is correct because the shining of a diamond is due to total internal reflection, and the high refractive index of diamond leads to a small critical angle, facilitating total internal reflection.

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