The velocity of light in vacuum is 3×10⁸ m/s. In a medium of refractive index 1.5, speed is MCQ with Answer and Explanation

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The velocity of light in vacuum is 3×10⁸ m/s. In a medium of refractive index 1.5, speed is

A. 2×10⁸ m/s

B. 4.5×10⁸ m/s

C. 3×10⁸ m/s

D. 1.5×10⁸ m/s

Answer: Option A

Solution (By JKSSB Mock Tests)

v = c/n = 3×10⁸/1.5 = 2×10⁸ m/s.

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Correct Answer: Option C

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