if critical angle of a liquid with respect to air is 45 degree then find refractive index of liquid
if critical angle of a liquid with respect to air is 45 degree then find refractive index of liquid
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Critical angle θ c=45
For total internal reflection
n medium sinθ=n air
the refractive index of air is
n medium sinθ=1
n medium= sin45 = 1 / sq root 2