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When light of wavelength 323 nm falls on a potassium surface, electrons are emitted that have...

When light of wavelength 323 nm falls on a potassium surface, electrons are emitted that have a maximum kineticenergy of 1.60 eV. Find the work function for potassium.

Answer: 2.24 eV

What is the lowest frequency of light that will produce photoelectrons from potassium?
(in Hz)

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