After a volcanic eruption, the surface of a lava flow cools, so its temperature falls.
What happens to the peak of the wavelength distribution of the radiation emitted by the surface of the lava as its temperature falls?
It shifts towards longer wavelengths as the surface cools.
It vanishes because a cooling surface emits no thermal radiation.
It stays at the same wavelength while its intensity decreases.
It shifts towards shorter wavelengths as the surface cools.
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.