A perfect black body is heated until it is at a very high temperature. Which statement about the hot perfect black body is correct?
It emits no radiation, so it still looks completely black.
It reflects the radiation falling on it, so it looks bright.
It transmits the radiation falling on it, so it looks clear.
It emits radiation, so it can be seen to glow brightly.
40 exam-style questions on AQA GCSE Physics 6.3 Black body radiation, covering 6.3.1 Emission and absorption of infrared radiation and 6.3.2 Perfect black bodies and radiation. Each one has a worked solution and a mark scheme showing where the marks go.