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Em waves

  1. Jun 30, 2011 #1
    is it possible to make am em wave of length 5(lamda)....lamda=wavelength of em wave...
  2. jcsd
  3. Jun 30, 2011 #2


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    Gold Member

    You want to make a pulse with a wavelength that is 5 times its own wavelength?
  4. Jun 30, 2011 #3


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    Staff: Mentor

    I think he means to make a pulse that is five wavelengths long.
  5. Jun 30, 2011 #4
    Don't make no sense at all. A pulse has many many harmonics.
  6. Jul 1, 2011 #5
    What's wrong with turning the transmitter on... waiting until 5 wavelengths go out... then shutting it off?
  7. Jul 1, 2011 #6

    Claude Bile

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    Science Advisor

    The minimum pulse duration that can be achieved depends on the spectral content of the pulse (i.e. the bandwidth). Look up "Fourier-transform limited pulse" or "time-bandwidth limited pulse".

  8. Jul 2, 2011 #7
    yes i mean 5 times of wavelength.but is there any difference in energy produced by a wave of length =300m and and 5*300(5 pulse)..
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