Refractive index of a transparent medium is defined as the ratio of speed of light in free space (vaccum) to the speed of light in the given medium.
Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
Define refractive index of a transparent medium?
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The refractive index of a transparent medium is the ratio of the speed of light in a vacuum (c) to the speed of light in the medium (v):
n = c/v .
It indicates optical density.
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