CBSE BOARD X, asked by sanket3195, 8 months ago

In 10 board exam speed of medium2 is given by board ​(refractive index)

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Answered by kirthiparu6
2

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

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