O-LevelPhysicsThermal Physics5054/11 · May/June 2013 · Q141 Mark

Two identical metal plates are painted, one matt (dull) white and the other matt black. These are placed at equal distances from a radiant heater as shown. The heater is turned on for five minutes. Which metal plate absorbs more energy and which plate emits more energy in this time?

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Ablack, black

Bblack, white

Cwhite, black

Dwhite, white

✓ Correct answer

A: black, black

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2013 Paper 1 Variant 1, question 14.

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