A U-shaped tube with an inner diameter of 1.5 cm is open to the atmosphere at both ends. Water (density = 1000 kg/m³) is added to the tube until each arm of the U is half full (well above the bend in the tube). A 6.0-cm³ volume of oil is added to one arm of the U. After the fluid is added, the difference in levels of the two arms is 0.30 cm. The density of the oil is A) 1080 kg/m³. B) 1040 kg/m³. C) 962 kg/m³. D) 912 kg/m³.

Question

Quizplus · Accepted Answer

The difference in levels is due to the difference in densities. Using the formula for pressure balance and the given volume and level difference, the density of the oil is calculated to be 912 kg/m³.

A U-Shaped Tube with an Inner Diameter of 1