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Homework Help: Wavelength of carrier frequency radio signal

  1. Feb 3, 2009 #1
    1. The problem statement, all variables and given/known data
    Your favorite radio FM radio station broadcasts at a carrier frequency of 94.7 Megahertz.

    What is the wavelength of the carrier frequency radio signal?


    2. Relevant equations

    velocity=wavelength(frequency)

    3. The attempt at a solution

    94.7x10^-6(w)= 3x10^8
    w= 3.2 wavelength


    I think this is right just not 100% sure
     
  2. jcsd
  3. Feb 3, 2009 #2

    Kurdt

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    Re: electromagnetics

    Are you sure 94.7 Megahertz = 94.7 x 10-6 Hertz?

    Apart from that typo it looks like you've done it ok. Remember your units though.
     
    Last edited: Feb 3, 2009
  4. Feb 3, 2009 #3
    Re: electromagnetics

    o ok i see what i did wrong its 94.7x10^6 hertz but the answer comes out to 3.167898627E12, it just seems weird. would that be right?
    and what would the unit be?
     
  5. Feb 3, 2009 #4

    Kurdt

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    Re: electromagnetics

    You had the answer correct in the first place despite the typo. What is the SI unit of length?
     
  6. Feb 3, 2009 #5
    Re: electromagnetics

    o ok so it would be 3.2 meters?
     
  7. Feb 3, 2009 #6

    Kurdt

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    Re: electromagnetics

    Yes :smile:
     
  8. Feb 3, 2009 #7
    Re: electromagnetics

    o ok. thanks for your time :)
     
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