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Dimensional Analysis

The speed of ...

Question

The speed of the yellow light in a certain liquid is $2.4 \times 10^{8}$ m. $s^{- 1}$ Find the refractive index of the liquid.

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Solution

$μ_{1} = \frac{1 \times 3 \times 10^{8}}{(2.4) \times 10^{8}} = 1.25 [Since, μ = \frac{Velocity of light in vaccum}{Velocity of light in the given medium}]$

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