O-LevelPhysicsForcesOct/Nov 2024Paper 1 Q201 Mark
The diagram shows an instrument that is used to measure the atmospheric pressure. [Figure showing a mercury barometer with vacuum, mercury column height 760 mm, a level 20 mm below the top, and total height 850 mm, with the mercury reservoir at 150 mm height]. The density of mercury is 1.4 × 10⁴ kg/m³. What is the atmospheric pressure?
A2.7 kPa
B21 kPa
C104 kPa
D117 kPa
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The correct answer is C. This question tests the candidate's understanding of forces within the Physicssyllabus. The examiner's mark scheme requires...
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