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प्रश्न
The refractive index of water with respect to air is 1.3. Calculate the refractive index of air with respect to water.
संख्यात्मक
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उत्तर
Given: \[ {}_{a}n_{w}=1.3 \]
Formula: \[ {}_{w}n_{a}=\frac{1}{{}_{a}n_{w}} \]
\[ {}_{w}n_{a}=\frac{1}{1.3} \]
The refractive index of air with respect to water is the reciprocal:
\[ {}_{w}n_{a}\approx 0.77 \]
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