An open-ended U-tube of a uniform cross-secti0onal area contains water (density
1.0gram/centimeter3) standing initially
20 centimeters from the bottom in each arm. An immiscible liquid of density
4.0gram/centimeter3 is added to one arm until a layer of
5 centimeters high forms, as shown in the figure above. What is the ratio
h2/h1 of the heights of the liquid in the two arms?