Assertion (A) >: A diamond sparkles more than a glass imitation cut to the same shape. Reason (R) >: The refractive index of diamond is less than that of glass. In the context of the above two statements, which one of the following is correct ?

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Q: 108 (IAS/1995)

Assertion (A): A diamond sparkles more than a glass imitation cut to the same shape.
Reason (R): The refractive index of diamond is less than that of glass. In the context of the above two statements, which one of the following is correct ?
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question_subject: 

Science

question_exam: 

IAS

stats: 

0,60,44,24,15,60,5

keywords: 

{'refractive index': [0, 1, 1, 5], 'glass imitation': [0, 1, 0, 0], 'diamond': [0, 0, 3, 3], 'glass': [0, 0, 1, 4], 'same shape': [0, 1, 0, 0]}