Physics 0625 · IGCSE · Electromagnetic spectrum

Electromagnetic spectrum — practice question

A student is asked to state two applications of four different kinds of electromagnetic radiation. In which row are both applications correct?

  • Aradio: sterilising medical equipment; mobile phone masts
  • Bmicrowaves: mobile phones; sterilising medical equipment
  • Cinfrared: remote controllers; intruder alarms
  • DX-rays: security in airports; intruder alarms

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