basic physics

Discussion in 'General Electronics Chat' started by Vasanthkumarv, Mar 10, 2013.

  1. Vasanthkumarv

    Thread Starter New Member

    Mar 8, 2013
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    hello,
    what is wavelength? we say it in terms of meters. but it is dependent of frequency. please explain clearly.
     
  2. StayatHomeElectronics

    Distinguished Member

    Sep 25, 2008
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  3. MrChips

    Moderator

    Oct 2, 2009
    13,345
    3,745
    This paragraph taken from the article in this link is incorrect.

    http://www.techterms.com/definition/wavelength

    EM waves travel at the speed of light, c = 3x10^8 m/s.

    The frequency range spans 20 orders of magnitude.

    Using the equation

    λ = c/f

    you can calculate the wavelength λ.

    The wavelength of the EM signal from an FM station transmitting at 100MHz is 3 metres.
    The wavelength of the EM signal from an AM station transmitting at 1000kHz is 300 metres.
     
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