O-LevelPhysicsForces5054/12 · Oct/Nov 2019 · Q121 Mark
The diagram shows three tubes P, Q and R. Each tube contains air trapped by a water column. Which statement is correct?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
AThe pressure of the trapped air is equal in tubes P, Q and R.
BThe pressure of the trapped air is greatest in tube Q.
CThe pressure of the trapped air is greatest in tube R.
DThe pressure of the trapped air is greatest in tube P.
✓ Correct answer
A: The pressure of the trapped air is equal in tubes P, Q and R.
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