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How is the Refractive Index of a Material Related to the Speed of Light in It? - CBSE Class 10 - Science

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Question

How is the refractive index of a material related to the speed of light in it? 

Solution

The refractive index is the ratio of speeds of light in the two mediums.
The refractive index of medium 2 with respect to medium 1 is equal to the ratio of speeds of light in medium 1 and in medium 2.
`1^2n=v_1/v_2` 

`v_1`=Speed of light in medium 1 

`v_2`=Speed of light in medium 2 

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Solution How is the Refractive Index of a Material Related to the Speed of Light in It? Concept: Refraction of Light - Refractive Index.
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