Photons of energy 5.0 eV strike a metal surface that has a work function of 3.5 eV.Determine which one of the following best describes the kinetic energy of the emitted electrons.
A) 1.5 eV or less
B) 1.5 eV or more,but less than 2.5 eV
C) 2.5 eV or more,but less than 3.5 eV
D) 3.5 eV or more
E) 3.5 eV or less,but more than 1.5 eV
Correct Answer:
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