Physics
(i) What is the relation between the refractive index of water with respect to air (<sub>a</sub>μ<sub>w</sub>) and the refractive index of air with respect to water (<sub>w</sub>μ<sub>a</sub>) (ii) If the refractive index of water with respect to air (<sub>a</sub>μ<sub>w</sub>) is . Calculate the refractive index of air with respect to water (<sub>w</sub>μ<sub>a</sub>).
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