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Frequency and Wavelength

  1. Sep 8, 2009 #1
    the speed of sound in air is 330ms^-1 , speed of light is 3 x10^8 ms^-1... whats the frequency of radio waves of wavelength 100mm ?
     
  2. jcsd
  3. Sep 8, 2009 #2

    Doc Al

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    Re: frequency

    How are speed, wavelength, and frequency related?
     
  4. Sep 8, 2009 #3
    Re: frequency

    wave speed = frequency * wavelength
     
  5. Sep 8, 2009 #4

    Doc Al

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    Re: frequency

    Good. That's all you need to solve for the frequency.
     
  6. Sep 8, 2009 #5
    Re: frequency

    ya but which speed do i use?
     
  7. Sep 8, 2009 #6

    Doc Al

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    Re: frequency

    Both light and radio waves are examples of electromagnetic waves, which have the same speed in a vacuum.
     
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