Light with a wavelength of 310 nm is incident on a metal that has a work function of 3.80 eV.What is the maximum kinetic energy that a photoelectron ejected in this process can have? (1 eV = 1.60 × 10-19 J,c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s)
A) 0.62 × 10-19 J
B) 0.21 × 10-19 J
C) 0.36 × 10-19 J
D) 0.48 × 10-19 J
E) 0.33 × 10-19 J
Correct Answer:
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