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The refractive index of water with respect to air is 4/3. What is the refractive index of air with respect to water? - Physics

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Question

The refractive index of water with respect to air is 4/3. What is the refractive index of air with respect to water? 

Numerical

Solution

Given =, refractive index of water w.r.t. air 

air µ water`=4/3` 

∴ refractive index of air w.r.t. water is: 

water µ air =` 1/"air µ water "=3/4=0.75`

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Chapter 4: Refraction of Light at Plane Surfaces - Exercise 4 (A) 3 [Page 82]

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Selina Physics [English] Class 10 ICSE
Chapter 4 Refraction of Light at Plane Surfaces
Exercise 4 (A) 3 | Q 3 | Page 82
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