O-LevelPhysicsThermal Physics5054/11 · May/June 2016 · Q161 Mark

Water of depth 10 m exerts a pressure equal to atmospheric pressure. An air bubble rises to the surface of a lake which is 20 m deep. When the bubble reaches the surface, its volume is 6.0 cm³. What is the volume of the air bubble at the bottom of the lake?

A2.0 cm³

B3.0 cm³

C12 cm³

D18 cm³

✓ Correct answer

A: 2.0 cm³

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2016 Paper 1 Variant 1, question 16.

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