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REASONING
A cut diamond sparkles because of its...

A cut diamond sparkles because of its

A

high polish

B

hardness

C

emission of light

D

high refractive index

Text Solution

Verified by Experts

The correct Answer is:
D

We know that diamond has a high refractive index (i.e. 2.42) and small critical angle. Therefore, total internal reflection occurs in diamond and it sparkles.
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