An electric ceramic heating element glows orange during use. After it is switched off, it cools and its glow changes from orange to dull red.
Which change occurs in the wavelength distribution of the radiation emitted as the element cools?
The peak moves to a longer wavelength.
The peak moves to a shorter wavelength.
The peak stays at the same wavelength.
The radiation becomes a single wavelength.
106 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.