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Asked: 2020-12-26T04:16:37+00:00 In:

Light enters from air to kerosene having a refractive index of 1.47. What is the speed of light in kerosene?

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    1. Given: kerosene have a refractive index of 1.47
      Speed of light in air is 3×10^8m/s

      Refractive index of the kerosene =speed of light in air /speed of light in the kerosene

      1.47=3×10^8/speed of light in the kerosene

      speed of light in kerosene =3×10^8 /1.47

      Speed of light in the kerosene =2.04×10^8m/s
      Therefore, 2.04×10^8m/s is the required speed of light in kerosene.

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