Two identical closed metal boxes each contain an identical metal block. Both blocks are initially at the same temperature.
One box has a shiny outside surface and the other box has a matt black outside surface.
The table shows the temperature of each block.
| Time in minutes | Temperature of block in box A in °C | Temperature of block in box B in °C |
|---|---|---|
| 0 | 80 | 80 |
| 10 | 58 | 66 |
State the type of electromagnetic radiation emitted by the outside surfaces of the boxes.
Explain which box has the shiny outside surface. Use the results in the table.
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.