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Answer:
> 1
The absolute refractive index (n=c/v) of any medium is always greater than 1, because speed of light in any medium is always less than that in vacuum (i.e v<c).
The absolute refractive index is defined as the ratio of the speed of light in vacuum and in the given medium. The absolute refractive index should never be less than 1.
Let c be the speed of light in vacuum and v in the given medium, then absolute refractive index is given
n=c/v
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Answer:
In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
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