Physics 0625 · IGCSE · Electromagnetic spectrum

Electromagnetic spectrum — practice question

Infrared is a helpful form of electromagnetic radiation. However, too much exposure to infrared may lead to damaging effects. Which row shows a use and a harmful effect of infrared?

  • Ause: detection of cancer; harmful effect: mutations
  • Buse: intruder alarms; harmful effect: skin burns
  • Cuse: detection of fake bank notes; harmful effect: cell damage
  • Duse: thermal imaging; harmful effect: internal heating of body cells

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