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Question
If the refractive index of glass for light going from air to glass is 3/2, find the refractive index of air for light going from glass to air.
Solution
Given:-
Refractive index of glass with respect to air`=mu_g^a=3/2`
Refractive index of air with respect to glass `=mu_a^g=1/mu_g^a=1/(3/2)=2/3`
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