The speed of light in air is 3x108. If the refractive index of glass is 1.5, find the time taken by the light to travel a distance of 10cm in glass.

Dear studentμ=speed of light  in airspeed of light in glass1.5=3×108speed of light in glassspeed of light in glass=3×1081.5=2×108distance=speed×time10 cm=2×108× time0.1=2×108× timetime=0.12×108=5×10-10 secRegards

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