O-LevelPhysicsThermal Physics5054/11 · Oct/Nov 2023 · Q171 Mark
A student suggests three factors that affect the rate of emission of thermal energy by radiation from a hot object. These are: 1 the surface temperature of the object 2 the surface area of the object 3 the surface colour of the object. Which suggestions are correct?
A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct answer
A: 1, 2 and 3
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