Question

What is the speed of light in diamond if absolute refractive of diamond is 2.4

Answer 1

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$n = \frac{c}{v} \\ \\ 2.4 = \frac{3 \times {10}^{8} }{v} \\ v = \frac{3 \times {10}^{8} }{2.4} \\ \\ v = 1.25 \times {10}^{8} m \div s$

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Answer 2

here is ur answer..............