Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar
    Gold Member

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


    User Avatar

    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

    User Avatar
    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)..
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Em waves
  1. EM waves (Replies: 3)

  2. EM Waves (Replies: 3)

  3. EM Waves and EM Pulses (Replies: 4)

  4. EM waves (Replies: 4)