Radiation is used to monitor the thickness of a steel plate continuously at a steel mill. The average thickness of the steel plate is about 20 mm. Which type of radiation is most appropriate for this measurement?
α\alphaα
β−\beta^-β−
β+\beta^+β+
γ\gammaγ
128 exam-style questions on AQA A Level Physics Radioactivity (A-level only), covering Rutherford scattering (A-level only), $\alpha$ , $\beta$ and $\gamma$ radiation (A-level only), Radioactive decay (A-level only), Nuclear instability (A-level only), Nuclear radius (A-level only), Mass and energy (A-level only), Induced fission (A-level only), and Safety aspects (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.