A sheet of glass is removed from a furnace and allowed to cool. A detector records the peak wavelength and the intensity at the peak of the radiation emitted by the glass. The results of two measurements are shown in the table.
| Measurement | Peak wavelength in μm\mu\text{m}μm | Intensity at the peak in arbitrary units |
|---|---|---|
| P | 4.3 | 2.5 |
| Q | 3.3 | 9.4 |
Explain which measurement was made first.
Predict how the peak wavelength and the intensity at the peak in a third measurement, made after both P and Q, would compare with measurement P.
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.