A U-Tube Has Dissimilar Arms, One Having Twice the Diameter

question 9

Multiple Choice

A U-tube has dissimilar arms, one having twice the diameter of the other.It contains an incompressible fluid and is fitted with a sliding piston in each arm, with each piston in contact with the fluid.When an applied force does work W in pushing the piston in the narrow arm down, the fluid does work __________ on the piston in the wide arm.

• A)W
• B)2W
• C)W/2
• D)4W
• E)W/4

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