A-LevelPhysicsForces, density and pressure9702/12 · Feb/Mar 2024 · Q121 Mark

A borehole of depth 2000 m contains both oil and water, as shown. The pressure due to the liquids at the bottom of the borehole is 17.5MPa. The density of the oil is 830 kg m⁻³ and the density of the water is 1000 kg m⁻³. [Figure showing oil and water in a borehole, with depth x for oil and total depth 2000 m] What is the depth x of the oil?

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A907 m

B1000 m

C1090 m

D1270 m

✓ Correct answer

D: 1270 m

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2024 Paper 1 Variant 2, question 12.

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