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Lefty743 Lefty743
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11 years ago
The binding energy of electrons in a metal is 190 kJ/mol. Find the threshold frequency of the metal.
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wrote...
11 years ago
Just find light with that energy:
Take your E and divide by avogadro's # to get E/photon
E = planck's const. times frequency, so
freq = E/planck's const.
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