Question

define refractive index

Answer 1

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the ratio of the velocity of light in a vacuum to its velocity in a specified medium



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Answer 2

Answer:

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Explanation:

the ratio of the velocity of light in a vacuum to its velocity in a specified medium

Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v

Uses

Refractive index is used to measure solids, liquids, and gases. Most commonly it is used to measure the concentration of a solute in an aqueous solution. It can also be used as a useful tool to differentiate between different types of gemstone, due to the unique chatoyance each individual stone displays .

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