State the laws of refraction of light. If the speed of light in vacuum is 3 108 m/s, find the absolute refractive index of a medium in which light travels with a speed of 14 108 m/s.
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Answer:Refractive index of a medium = speed of light in vacuum/speed of light in the medium
= 3 x 108/(1.4 x 108)
= 2.14
Explanation:
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