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Introductory Physics Homework Help
Work function of cathode, visible light
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[QUOTE="mfb, post: 5464642, member: 405866"] If your material has a work function of 3.11 eV, then 400 nm light is barely able to knock out electrons, the 700 nm light at 1.78 eV/photon cannot knock out any electrons. If your material has a work function of more than 3.11 eV, you cannot release any electrons with visible light. If your work function is 1.78 eV/photon, then 700 nm light barely manages to release electrons, 400 nm light can do so easily. [/QUOTE]
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Work function of cathode, visible light
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