A U tube with both ends open to the atmosphere is partially filled with water. Oil, which is immiscible with…
A tube with both ends open to the atmosphere is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a distance of above the water level on the other side. Meanwhile, the water rises by from its original level (see diagram). The density of the oil is____
Solution
Pressure in a stationary liquid at the same level is the same everywhere. As both ends of the tube are open, the pressure on both free surfaces should be equal.