Wed April 04, 2012 By: Rachael Therese

i could not understand the calculations for finding the speed of light,refractive index and what is absolute refractive index?

Expert Reply
Thu April 05, 2012
air has a refractive index close to that of a vacuum, the refractive index of a material relative to air is a good approximation to the absolute refractive index of the material.
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