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

Basic Formula?

  1. Oct 30, 2009 #1
    For some unknown reason, my 6 kilogram physics textbook doesnt explain the formula:

    (me^4 / 8e0^2 h^2 ) x 1/ n^2

    Where n is the state number.
    Im just wondering what the me is, it is not m(subscript e) but just me both lowercase, e0 is greek epsilon subscript zero.. Could someone help me out, thanks
     
  2. jcsd
  3. Oct 30, 2009 #2
    it's m times e^4, where m is electron mass and e is electron charge.
     
  4. Oct 30, 2009 #3
    thankyou!
     
  5. Oct 31, 2009 #4
    Substitute α = e2/4 pi ε0 h c

    where α = 1/137 = fine structure constant

    Bob S
     
  6. Oct 31, 2009 #5
    h should be hbar in here.
     
  7. Oct 31, 2009 #6
    You're right. My hbar key isn't working. It would be nice to have hbar in the copy and paste thread:https://www.physicsforums.com/blog.php?b=347 [Broken]
    Bob S
     
    Last edited by a moderator: May 4, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Basic Formula?
  1. Basic understanding (Replies: 9)

  2. Basic understanding (Replies: 8)

  3. The basic idea (Replies: 5)

  4. Normalizing Basics (Replies: 3)

  5. Basic quantum (Replies: 2)

Loading...