A food company wants to:
kill bacteria in fruit that has already been sealed in plastic packets
disinfect drinking water used in the factory.
The company is considering using ultraviolet radiation and gamma rays.
Explain which radiation is more suitable for each purpose, and discuss the hazards to the workers from each radiation.
104 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation, covering 5.4.1 Dangers of electromagnetic radiation, 5.4.2 Uses of electromagnetic radiation, 5.4.3 Radio waves and oscillations in circuits, and 5.4.4 Changes in atoms and nuclei generating radiation. Each one has a worked solution and a mark scheme showing where the marks go.