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

Spin 1/2

  1. May 28, 2015 #1
    I was looking at the wikipedia article for spin 1/2 http://en.wikipedia.org/wiki/Spin-½ and it stated that √(½(½+1))ħ=√3/2ħ. According to my math it is √¾ħ. Is this just a typo or am I missing something?
  2. jcsd
  3. May 28, 2015 #2


    User Avatar
    Gold Member

    Be careful, what you wrote is ## \sqrt{\frac 3 4 }\hbar ## and what the wiki page wrote is ## \frac{\sqrt 3}{2} \hbar ##. They're the same!
  4. May 28, 2015 #3
    Ah I see. I went off initial simplification, not realizing that they are the same.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook