The absolute refractive index of a medium with respect to air is given by :

[c = speed of light in air, v = speed of light in the medium]

$n_{m}$ = $\frac{c^{2}}{v}$

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$n_{m}$ = $\frac{v}{c}$

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$n_{m}$ = $\frac{c}{v}$

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None of above

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Solution

The correct option is B
$n_{m}$ = $\frac{v}{c}$

The absolute refractive index of a medium with respect to air is given by the ratio of speed of light in the medium to the speed of light in air, which can be written as:

$n_{m}$ = $\frac{v_{m}}{c}$

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The absolute refractive index of a medium with respect to air is given by : [c = speed of light in air, v = speed of light in the medium]

The correct option is B nm = vc The absolute refractive index of a medium with respect to air is given by the ratio of speed of light in the medium to the speed of light in air, which can be written as: nm = vmc

The absolute refractive index of a medium with respect to air is given by :

[c = speed of light in air, v = speed of light in the medium]

The correct option is B
$n_{m}$ = $\frac{v}{c}$

The absolute refractive index of a medium with respect to air is given by the ratio of speed of light in the medium to the speed of light in air, which can be written as:

$n_{m}$ = $\frac{v_{m}}{c}$