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Per NCERT, what is the refractive index of DIAMOND — the HIGHEST among the common materials listed?
A1.52
BLess than 1
C2.42
D1.33
Answer & Solution
Correct answer: C. 2.42
Per NCERT Table 9.3, diamond n = 2.42 — highest refractive index among listed materials. Its sparkle is partly due to this high refractivity + total internal reflection.
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