An infrared sensor records the radiation emitted by the same ceramic heating element at two stages of a test.
| Stage | Peak wavelength in µm |
|---|---|
| X | 2.4 |
| Y | 3.1 |
Explain which stage, X or Y, had the higher temperature.
After stage Y, the element is heated until its temperature is higher than it was at stage X.
Describe two differences between the wavelength distribution now emitted and the wavelength distribution at stage X.
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.