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: Releasing Electrons with a color filter!

  1. Nov 24, 2016 #1
    1. The problem statement, all variables and given/known data

    Simple question we have to answer:

    (Physics) How do I release the electrons from the cathode with a color filter? (The so called
    Photoelectric effect)

    2. Relevant equations


    3. The attempt at a solution

    Here we have a conflict , the so called wave-particle duality, if I recall it correct.

    I have no idea what could cause to release the electrons from the photocell. In the experiment the light lost voltage after inserting a color filter, making the electrons release from the photocell. (cathode and anode)

    But why exactly, I cannot imagine. Perhaps because the color filter absorbs the electrons? (Makes no sense though.)
  2. jcsd
  3. Nov 24, 2016 #2


    User Avatar
    Science Advisor
    Gold Member

    Google "work function of metals" for info.
  4. Nov 25, 2016 #3


    User Avatar
    Homework Helper

    What do you mean by the
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted