Multiple Choice
Electromagnetic radiation with a frequency of 8.6 Hz incident on an unknown metal surface causes ejection of photoelectrons with kinetic energies of 1.3
J. What is the unknown metal?
A) rubidium ( 3.5
J)
B) gold ( 8.2
J)
C) nickel ( 8.3
J)
D) sodium ( 4.4
J)
E) platinum ( 9.1
J)
Correct Answer:

Verified
Correct Answer:
Verified
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