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What is. Brilliant of dimand

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What is. Brilliant of dimand

    • Posted by Anjali Shukla 4 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Yogita Ingle 4 years, 10 months ago

    Refractive index of diamond is 2.42 and the critical angle is 24.40 only. The faces of diamond are cut in such a way that a ray of light entering the diamond suffers repeated total internal reflections (angle of incidence is greater than the critical angle) at different faces and remains confined within the diamond. Thus it sparkles.

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