The refractive index of diamond is much greater than that of a glass how does a diamond cutter make use of this fact
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The refractive index of diamond (2.42) is more than that of ordinary glass (1.5). The critical angle for diamond is less than that for glass. A diamond cutter uses a large angle of incidence to ensure that the light entering the diamond is totally reflected from its faces.
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REFRACTIVE INDEX of diamond is more than ref.index of glass due to this the the critical angle for this diamond air is low the diamond is cut suitably so that the light entering it undergoers total internal reflection at various surface this gives it a sparkling effect
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