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Define refractive index of a transparent medium. The speed of light in amedium of absolute refractive index 1-5 is 2 x 108 ms-1. What is thespeed of light in vacuum ? |
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Answer» Refractive index of a transparent medium is defined the ratio of speed of light in vacuum and speed of light in medium. Is given by : n = c/v Where, n is the refractive index.c is the speed of light in vacuum.v is the speed of light in medium.------------- It has no units. Because it is the ratio of quantities which are similar. |
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