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AlexFokin [52]
3 years ago
12

.

Biology
1 answer:
Fofino [41]3 years ago
5 0

Answer:

in a vacuum to the speed of light in the material

Explanation:

<em>The index of refraction, also known as the refractive index, is the ratio of the speed of light in a vacuum to the speed of light in the material.</em>

<u>When light rays travel travels from one medium to another, it bends as a result of a change in the speed of traveling from the first medium to the second medium. </u>

The refractive index (n) of a material is calculated by:

                    <em>  sin i/sin r</em>

Where i = the incidence angle of the traveling ray in the vacuum and r = angle of refraction.

The refractive index (n) is also given as:

                       <em>  c/v</em>

Where c = velocity of light in the vacuum and v = velocity of light in the material.

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