Physics · Oct / Nov 2023 · Paper 11 · Question 17

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?

1. A1, 2 and 3
2. B1 and 2 only
3. C1 and 3 only
4. D2 and 3 only

As printed in the paper