1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Diffraction and Interference

  1. Feb 9, 2009 #1
    1. The problem statement, all variables and given/known data
    An aircraft causes a horizontal layer of charged particles to be formed in the atmosphere. Radio waves are relected without phase from this layer. Radio waves of frequency 8.00 x 10^2 kHz are received at a location 12 km from the transmitter. What is the minimum height of the layer of particles if radio reception fades due to destructive interference between the direct beam and the reflected beam?


    2. Relevant equations

    lamba = v/f

    3. The attempt at a solution

    I have found a wavelength of 375 m. Now i'm not sure what to do from here. The answer is supposed to be between 1 and 2. Can someone help me get past this road block?
     
    Last edited: Feb 9, 2009
  2. jcsd
  3. Feb 9, 2009 #2
    Ah yes, quite a familiar problem. The workings should not be too hard. I believe that the equation is x/L=lambda/d, if I'm not mistaken, unless that is a predefined equation designated by your instructor specifically for this problem...
     
  4. Feb 9, 2009 #3
    Can someone assist me in solving this problem?
     
  5. Feb 10, 2009 #4
    I wish I could.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Diffraction and Interference
Loading...