A-LevelPhysicsForces, density and pressureMay/June 2013Paper 1 Q201 Mark
Two bulbs X and Y containing air at different pressures are connected by a tube P which contains two mercury threads. [Figure showing two bulbs X and Y connected by a U-tube manometer with mercury, indicating h₁ and h₂] The density of mercury is 13600 kg m⁻³. Which pair of values of h₁ and h₂ is possible?
A4.0
2.0
B6.0
6.0
C12.0
18.0
D18.0
12.0
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of forces, density and pressure within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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