The Diagram Shows a U-Tube Having Cross-Sectional Area a and Partially

question 70

Multiple Choice

The diagram shows a U-tube having cross-sectional area A and partially filled with oil of density $\rho$ . A solid cylinder, which fits the tube tightly but can slide without friction, is placed in the right arm. The system reaches equilibrium. The weight of the cylinder is:

• A) AL\(\rho\)g
• B) L³\(\rho\)g
• C) A\(\rho\)(L + h)g
• D) A\(\rho\)(L - h)g
• E) none of these

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