Define refractive index of a transparent medium. A ray of light p… - Vidyadip

Question

Define refractive index of a transparent medium.
A ray of light passes through a triangular prism. Plot a graph showing the variation of the angle of deviation with the angle of incidence.

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Answer

Refractive index: It is the ratio of speed of light in vacuum to the speed of light in medium.
Alternate Answer
$\mu= \frac{\sin\text{i}}{\sin\text{r}}$

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