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The refractive index of water with respect to air is 1.3. Calculate the refractive index of air with respect to water.

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Question

The refractive index of water with respect to air is 1.3. Calculate the refractive index of air with respect to water.

Numerical
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Solution

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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Chapter 2: Light - Graded Assignment 2.1 [Page 115]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 2 Light
Graded Assignment 2.1 | Q 14. | Page 115
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