AQA GCSE Physics · 8463
Specification 4.6.3.2 · Paper 2
- Revise: Perfect black bodies and radiation
A balance in which radiation is absorbed and emitted at the same rate, so there is no temperature change due to radiation.
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GCSE Physics · key term
A condition in which a body absorbs and emits radiation at the same average rate, so radiation causes no net change in its energy.
Used by AQA, Edexcel and OCR
Specification 4.6.3.2 · Paper 2
A balance in which radiation is absorbed and emitted at the same rate, so there is no temperature change due to radiation.
Specification 5.16P · Paper 1
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Specification P8.3h · Paper 2 (Foundation), Paper 4 (Higher)
A state in which a body absorbs and emits radiation at equal rates, so radiation alone causes no temperature change.