the refractive index of ruby is 1.71. what is the meaning of this statement? and also explain in detail the medium having higher optical density and find the medium with lowest optical density
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The mathematically expression of refractive index is as follows as; Here,c is the speed of light in vacuum, n is the refractive index and v is the speed of light in medium. It is given in the problem that the refractive index of Ruby is 1.71. It means that the speed of light in vacuum is 1.71 times faster than that in medium.
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