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Absolute and Relative Refractive Index

The ratio of ...

Question

The ratio of velocity of light in first medium to that of velocity of light in second medium is …………

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Solution

$R e f r a c t i v e i n d e x = \frac{v_{1}}{v_{2}}$ , $v_{1}$ = velocity of light in the first medium and $v_{2}$ =velocity of light in the second medium
Hence, the ratio of the velocity of light in the first medium to that of the velocity of light in the second medium is the Refractive index.

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