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Physics · May / June 2016 · Paper 11 · Question 24

5054Electromagnetic spectrum

Microwaves are used to transmit television signals to and from a satellite. Which statement about microwaves is correct?

  1. AThey have a longer wavelength than radio waves.
  2. BThey penetrate the atmosphere without significant loss of energy.
  3. CThey travel much faster than radio waves in a vacuum.
  4. DThey warm the satellite and stop it freezing.

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Correct answer: B. They penetrate the atmosphere without significant loss of energy.

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