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Photoelectric material

  1. Jul 1, 2004 #1
    What frequencies of light does photoelectric light react best to? Does it matter? How would it react to an amplified form of cosmic radiation?
  2. jcsd
  3. Aug 2, 2004 #2
    Photoelectric light?

    The photoelectric effect (when electrons are ejected from a material) usually happens with metals using UV light. Lower (visible or IR) frequencies don't have enough energy to do this. I don't see why one would bother amplifying cosmic radiation. The UV from space is heavily absorbed by the atmosphere.
    Last edited by a moderator: Aug 2, 2004
  4. Aug 2, 2004 #3


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    Please define "photoelectric light." ("photoelectric material", as the thread title suggests, perhaps?)

    I believe you mean "... lower frequencies don't have enough energy ..."?
  5. Aug 2, 2004 #4
    Oh my god yes! <self-slap in the face> Edited.
  6. Jun 2, 2010 #5
    so i'm very interested in this subject and have never been on a forum, please bear with me.
    doesn't cuprous oxide produce a photoelectric effect? i was wondering what else created this effect as well... by definition a photoelectric effect doesn't only exist within metals, but also certain gasses and liquids as well... again please feel free to correct me if i'm wrong.
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