Q.
An open ended U-tube of uniform crosssectional area contains water $\left(\rho=1.0\, g / cm ^{3}\right)$ standing initially $30\,cm$ from the bottom in each arm. An immiscible liquid of density $4.0 \,g / cm ^{3}$ is added to one arm untill a layer of $5 \,cm$ high forms as shown in figure below. Find ratio $\frac{ h _{2}}{ h _{1}}$ :-
Solution: