Key term for OCR GCSE Physics B, used in Radioactivity.
The low-level radiation measured from the natural environment that must be subtracted from a source's total reading.
Background count appears in OCR GCSE Physics B revision content for Radioactive materials, especially Radioactivity and Radioactivity.
Create a free account to access OCR GCSE Physics B revision notes, track progress, and practise related key terms.
