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A man of height 2.0 m is standing on a l...

A man of height `2.0 m` is standing on a level road because of temprature variation the refractive index of air is varying as `mu=sqrt(1+ay),` where y is height from road. If `a=2.0xx10^-6 m^-1.` Then, find distant point that he can see on the road.

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