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3 Cards in this Set
- Front
- Back
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Photoelectric Effect |
Electrons are emitted from the surface of a metal when electromagnetic radiation above a certain frequency was directed at the metal. |
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Einstein's Explanation |
Light is composed of wavepackets or photons, each of energy equal to it. When light is incident on a metal surface, an electron at the surface absorbs a single photon from the incident light and therefore gains energy equal to hf. An electron can leave the metal surface if the energy gained from a single photon exceeds the work function of the metal. |
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Stopping Potential |
The minimum potential need to stop photoelectric emission. |
