O-LevelPhysicsThermal Physics5054/11 · May/June 2018 · Q211 Mark

The diagrams show four identical cans with their outside surfaces either polished silver or painted dull black. Each can contains the same volume of water, initially at 80 °C. After five minutes in a cool room, which can contains the coolest water?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ADiagram A

BDiagram B

CDiagram C

DDiagram D

✓ Correct answer

A: Diagram A

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2018 Paper 1 Variant 1, question 21.

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