A metal having a work function of 2.4 eV is illuminated with monochromatic light whose photon energy is 4.0 eV.What is the maximum kinetic energy of the photoelectrons produced by this light? 
A) 2.6 × 10-19 J
B) 3.8 × 10-19 J
C) 4.7 × 10-19 J
D) 5.5 × 10-19 J
E) 6.4 × 10-19 J
Correct Answer:
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