If the speed of light in a medium is 2 × 10⁸ m/s, what is its refractive index? - OPTICS Quiz | GKFix.in

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If the speed of light in a medium is 2 × 10⁸ m/s, what is its refractive index?

A. 1.33
B. 1.5
C. 1.73
D. 2.0

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