Photoelectric Effect: If the work function of a metal surface is 2.20 eV, what frequency of incident light would give a maximum kinetic energy of 0.25 eV to the photoelectrons ejected from this surface? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A. 2.05 × 1014 Hz
B. 1.02 × 1014 Hz
C. 2.50 × 1014 Hz
D. 3.53 × 1014 Hz
E. 5.92 × 1014 Hz
Answer: E
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