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What is meant by the statement ‘the critical angle for diamond is 24°? How is the critical angle of a material related to its refractive index? |
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Answer» Critical angle for diamond is 24° means that the angle of incidence of light in diamond is such that the angle of refraction for it in air is 90°. The critical angle is related to the refractive index of the material as 1/sin ic = µ, where µ = refractive index |
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