1.

There is a circular tube in a vertical plane. Two liquids which do not mix and of densities `d_1 and d_2` are filled in the tube. Each liquid subtends `90^@` angle at centre. Radius joining their interface make an angle `alpha` with vertical. Ratio `(d_1)/(d_2)` is : A. `(1+tanalpha)/(1-tanlpha)`B. `(1+sinalpha)/(1-cosalpha)`C. `(1+sinalpha)/(1-sinalpha)`D. `(1+cosalpha)/(1-cosalpha)`

Answer» Correct Answer - A


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