The velocity of light in glass whose refractive index with respect to air is 1.5 is 2×108ms−1. In a certain liquid the velocity of light is found to be 2.5×108 ms−1. The refractive index of the liquid with respect to air is

μgμL=VLVg⇒μL=(VgVL)μg=2×1082.5×108×1.5=1.2

The velocity of light in glass whose refractive index with respect to air is 1.5 is 2×108ms−1. In a certain liquid the velocity of light is found to be 2.5×108 ms−1. The refractive index of the liquid with respect to air is

μgμL=VLVg⇒μL=(VgVL)μg=2×1082.5×108×1.5=1.2

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The velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^{8} m s^{- 1}$ . In a certain liquid the velocity of light is found to be $2.5 \times 10^{8} m s^{- 1}$ . The refractive index of the liquid with respect to air is

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0.80

1.20

1.44

0.64

answer is C.

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$\frac{μ_{g}}{μ_{L}} = \frac{V_{L}}{V_{g}}$

$\Rightarrow μ_{L} = (\frac{V_{g}}{V_{L}}) μ_{g} = \frac{2 \times 10^{8}}{2.5 \times 10^{8}} \times 1.5 = 1.2$

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The velocity of light in glass whose refractive index with respect to air is 1.5 is 2×108ms−1. In a certain liquid the velocity of light is found to be 2.5×108 ms−1. The refractive index of the liquid with respect to air is

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The velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^{8} m s^{- 1}$ . In a certain liquid the velocity of light is found to be $2.5 \times 10^{8} m s^{- 1}$ . The refractive index of the liquid with respect to air is