In medical imaging departments, radiographers wear lead aprons when taking X-rays. What is the primary reason for using lead in these aprons?
Lead reflects the X-rays back to the imaging machine.
Lead absorbs the X-rays and prevents them from reaching the body's vital organs.
Lead neutralises the charge of the incoming X-ray photons.
Lead accelerates the X-rays to improve image contrast.
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.