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

Definition of coherent sources

  1. May 29, 2006 #1
    Coherent sources are defined as sources having same frequency and constant phase difference. In some books it is given that coherent sources have constant phase difference only. Which is correct?
  2. jcsd
  3. May 29, 2006 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    If two waves had different frequencies would they have a constant phase difference?

  4. May 29, 2006 #3
    Constant phase difference will do as this in effect would mean that the sources possess the same frequency.
    But the reverse is not applicable.
    Frequency can remain same with varying phase difference over time .
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook