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!

Height for the particle in a box

  1. Dec 4, 2005 #1
    why is the height for the particle in a box expressed in eV and not in meters?
     
  2. jcsd
  3. Dec 4, 2005 #2
    Because it's an energy barrier instead of a wall.
     
  4. Dec 4, 2005 #3
    so the original assumption was that the particle got blocked in a box by energy barriers?
     
  5. Dec 4, 2005 #4
    Yes. It could be an electric potential for example.
     
  6. Dec 4, 2005 #5

    LeonhardEuler

    User Avatar
    Gold Member

    I've seen a lot of people get confused by this. When you see a graph for the potential of a 1-d box, keep in mind that its a 1-d problem. The particle only has an x-coordinate. The height represented is the magnitude of the potential energy. Likewise, when you see a graph for the wavefunction of a particle in a 1-d box, don't thing of this as showing the hieght of the particle versus the horizontal displacement. The particle does not have a hieght: it is a 1-d problem! The hieght represents the value of the wavefunction at the given displacement. This hieght squared is proportional to the probability of the particle being found in a small region around the point.
     
  7. Dec 5, 2005 #6
    thank you very much for clearing that up! :)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Height for the particle in a box
  1. Particle in a box (Replies: 7)

  2. Particle in a box (Replies: 8)

  3. Particle in a box (Replies: 10)

  4. Particle in a box (Replies: 6)

  5. Particle in the box (Replies: 3)

Loading...