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.
16 exam-style questions on AQA GCSE Physics 4.3 Hazards and uses of radioactive emissions and of background radiation, covering 4.3.1 Background radiation, 4.3.2 Different half-lives of radioactive isotopes, and 4.3.3 Uses of nuclear radiation. Each one has a worked solution and a mark scheme showing where the marks go.