Multiple Choice
Early photoelectric light detectors were based on cesium. Cesium metal has a work function of 3.43 *10-19 J. What is the minimum frequency of electromagnetic radiation required to eject photoelectrons from a cesium surface?
A) 1.75 *1014/s
B) 3.15 * 1014/s
C) 5.17 * 1014/s
D) 1.55 * 1013/s
E) 7.24 * 1015/s
Correct Answer:
Verified
Correct Answer:
Verified
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