If u is the phase velocity of an EM wave in a given medium, the index of
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If u is the phase velocity of an EM wave in a given medium, the index of refraction of the medium is n = c/u, where c is the speed of light in vacuum.
(a) Paraffin has μr = 1, εr = 2.1. Determine n for unbounded medium of paraffin.
(b) Distilled water has μr = 1, εr = 81. Find n.
(c) Polystyrene has μr = 1, εr = 2.7. Calculate n.
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