O-LevelPhysicsThermal Physics5054/12 · May/June 2016 · Q121 Mark
Water of depth 10m exerts a pressure equal to atmospheric pressure. An air bubble rises to the surface of a lake which is 20m 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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