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In the previous question, if the work function was 3.5 eV, what would happen?
Electrons would be ejected with positive KE.
No electrons would be ejected.
The work function would decrease.
More photons would be needed.
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Light with photon energy 3.0 eV strikes a metal with a work function of 2.0 eV. What is the maximum kinetic energy of the ejected electrons?
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If the kinetic energy of the ejected electrons is 1.5 eV, and the incident photon energy is 4.0 eV, what is the work function of the metal?
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