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(I) What is the Relation Between the Refractive Index of Water with Respect to Air ( a μ W ) and the Refractive Index of Air with Respect to Water ( W μ a ) . - Physics

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Short Note

(i) What is the relation between the refractive index of water with respect to air `("_aμ_\text(w))` and the refractive index of air with respect to water `("_\text(w)μ_ a)` .
(ii) If the refractive index of water with respect to air `("_aμ_\text(w))` is`5/3`. Calculate the refractive index of air with respect to water `("_\text(w)μ_ a)` . 

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Solution

(i)  `"_a μ_\text(w) =(mu_\text(w))/(mu_a)`

    ` "_\text(w) μ_a   = (mu_a)/(mu_\text(w) `

     `∴ "_a μ_\text(w) `= `1/ ("_\text(w) mu_a)`

(ii)  ` "_a μ_\text(w) = 5/ 3`

      ` "_\text(w) mu _a = 3/5 `

Concept: Refraction of Light Through a Rectangular Glass Slab
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