If the speed of light in air is 3x10^8 m/s, then the speed of light in a medium of refractive index 3/2 is

2x10^8 m/s. The answer is 2x10^8 m/s. Speed in a medium equals the speed in air divided by the refractive index: (3x10^8)/(3/2) = 2x10^8 m/s.

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1. If the speed of light in air is 3×10^8 m/s, then the speed of light in a medium of refractive index 3/2 is

2×10^8 m/s

9/4×10^8 m/s

3/2×10^8 m/s

3×10^8 m/s

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