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Physics · Oct / Nov 2018 · Paper 12 · Question 26

5054Electromagnetic spectrum

Which statement about radio waves is correct?

  1. ARadio waves are sound waves.
  2. BRadio waves are used to kill cancerous cells.
  3. CRadio waves are used in television communications.
  4. DRadio waves have frequencies higher than those of visible light.

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Correct answer: C. Radio waves are used in television communications.

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