Multiple Choice
A photocathode has a work function of 2.8 eV.The photocathode is illuminated with monochromatic radiation whose photon energy is 4.0 eV.The threshold frequency for photoelectron production is closest to:
A) 6.8 × 1014 Hz
B) 2.9 × 1014 Hz
C) 7.7 × 1014 Hz
D) 8.6 × 1014 Hz
E) 9.7 × 1014 Hz
Correct Answer:
Verified
Correct Answer:
Verified
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