A small ceramic component is suspended inside an evacuated chamber and heated by infrared lamps. The component transfers energy only by radiation.
The component absorbs 60 J of radiation each second. Its initial temperature is 20 ∘C20\ ^\circ\text{C}20 ∘C.
| Temperature in ∘C^\circ\text{C}∘C | Energy emitted as radiation each second in J\text{J}J |
|---|---|
| 20 | 40 |
| 51 | 60 |
Explain how the temperature of the component changes after the infrared lamps are switched on, until the temperature becomes constant.
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.