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Question

A cutted diamond sparkles because of its:

A
high refractive index
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B
hardness
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C
emission of light by the diamond
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D
absorption of light by the diamond
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Solution

The correct option is C high refractive index
A cutted diamond sparkles because of its high refractive index. Because of high refractive index, the light suffers total internal reflections many times. that is why it sparkles.

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