Question

A light travel through the liquid at the speed of 1.95*10^2. What is the refractive index of the liquid?​

Answer 1

$u = \frac{speed \: of \: light \: in \: air \: }{speed \: of \: light \: in \: medium} \\ u = \frac{3 \times {10}^{8} }{1.95 \times {10}^{2} } \\ = 1.5 \times {10}^{6}$

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