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: Another quick question

  1. Aug 14, 2006 #1
    With what speed will the fastest photoelectrons be emitted from a surface wih threshold wavelength of 600nm when the surface is illuminated with light of wavelength of 400nm?
  2. jcsd
  3. Aug 14, 2006 #2
    We aren't going to help you if you don't show us what you've tried already.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook