Radioactive sources are typically stored in containers lined with lead. What is the primary purpose of this lead lining?
To absorb ionizing radiation emitted by the sources.
To reduce the half-life of the radioactive isotopes.
To prevent the radioactive sources from reacting with oxygen in the air.
To shield the sources from external temperature changes.
42 exam-style questions on CIE IGCSE Physics 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.