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2. Ultraviolet radiation

  • for cooking
  • to treat cancer
  • to detect forged bank notes
  • to send information along optical fibres

3. Gamma rays

  • in remote controls for TVs
  • to make thermal images
  • to detect cancer
  • to communicate with ships

4. Infrared radiation

  • in security systems such as burglar alarms
  • to broadcast radio and TV programmes
  • in fluorescent lamps
  • in airport sercurity

5. Radio waves are used to

  • to look inside objects
  • communicate with ships, aeroplanes and satelites
  • to detect security marks using special pens
  • short-range communications

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