The average background radiation dose per year in a certain region is 3.2 millisieverts (mSv)3.2\text{ millisieverts (mSv)}3.2 millisieverts (mSv).
A chest X-ray delivers a radiation dose of 0.02 mSv0.02\text{ mSv}0.02 mSv.
Calculate how many chest X-rays would give the same radiation dose as the average background radiation dose received in one year.
Practise AQA GCSE Physics Hazards and uses of radioactive emissions and of background radiation (physics only) with exam-style questions for Foundation and Higher tier. 16 questions covering Background radiation, Different half-lives of radioactive isotopes, and Uses of nuclear radiation, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.