what is refractive index?
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The amount of change in speed of light in a medium depend upon the property of medium(refractive index) Refractive index is a measure of how much speed of light changes when it enter the medium from air. Absolute refractive index is the ratio of speed of light in vacuum or air to speed of light in the medium. c. n=——
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Answer:
Refractive index refers to the ratio of speed of light in vacuum to the speed of light in that medium .
By equation,
n=c/v .
where , c is speed of light in vacuum , v is speed of light in that medium and n is symbol for refractive index.
Okay
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