Other questions in this quiz

2. Infra red radiation CANNOT be used for optical fibres

  • False
  • True

3. Gamma radiation is used:

  • To kill dogs
  • To kill harmful bacteria in food
  • To kill bugs

4. Radio waves compared to microwaves have:

  • Same frequency and same wavelength
  • Lower frequency and longer wave
  • Higher frequency and longer wavelength

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