1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Wave ?

  1. Oct 17, 2008 #1
    1. The problem statement, all variables and given/known data

    Difference between EM wave & a Matter wave ?
  2. jcsd
  3. Oct 17, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper

    Well, what do you mean by "a matter wave"?
    Do you mean, for example, what is the difference between a light wave and a wave in a string?
  4. Oct 17, 2008 #3
    like we can take example of a tennis ball . Its mass is huge & by de broglie its wavelength is extremely small .

    So what is the basic difference b/w EM wave & matter wave ?
  5. Oct 17, 2008 #4
    A mechanical wave travels at a constant speed relative to its medium.

    An electromagnetic wave travels at a constant speed relative to the observer.

    That is the most significant difference in behavior as I see it.

    Electromagnetic waves are also more fundamental. Mechanical waves are emergent phenomena when large numbers of atoms interact. Similar to heat or color, they do not exist on a sufficiently small scale.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook