A body is initially at a temperature of 300 K. It absorbs radiation at an average power of 450 W and emits radiation at the same average power. The absorbed power then increases to 500 W and remains constant. The table shows the body's emitted power at different temperatures.
| Temperature (K) | Emitted power (W) |
|---|---|
| 300 | 450 |
| 310 | 475 |
| 320 | 500 |
| 330 | 525 |
Explain how the body's temperature changes and determine its new equilibrium temperature.
96 exam-style questions on Edexcel GCSE Physics 5.3 Black body radiation, covering 5.3.1 Emission of radiation and temperature, 5.3.2 Radiation balance and constant temperature, and 5.3.3 The temperature of the Earth. Each one has a worked solution and a mark scheme showing where the marks go.