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Question
The absolute refractive index of a medium is given by:
Options
\[n = c - v\]
\[n = \frac{v}{c}\]
\[n = \frac{c}{v}\]
\[n = c \times v\]
MCQ
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Solution
The absolute refractive index is \[n = \frac{c}{v}\], where c is the speed of light in vacuum and v is the speed of light in the given medium.
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