(a)[1]
State which part of the electromagnetic spectrum transfers thermal energy.
(b(i))[1]
State one similarity between visible light and the radiation identified in (a).
(b(ii))[1]
State one difference between visible light and the radiation identified in (a).
(c(i))[3]
Describe an experiment to determine whether a black surface or a white surface is the better emitter of radiation. You may include a diagram.
(c(ii))[2]
To make sure that the conclusion reached in the experiment in (c)(i) is valid, several details of the experiment must stay the same when the two different surfaces are tested. State two quantities in the experiment you described that have to be the same during the test.