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Question
The stopping potential for electrons ejected by 6.8 x1014-Hz electromagnetic radiation incident on a certain sample is 1.8 V. The kinetic energy of the most energetic electrons ejected and the work function of the sample, respectively, are:
A) 1.8 eV, 2.8 eV
B) 1.8 eV, 1.0 eV
C) 1.8 eV, 4.6 eV
D) 2.8 eV, 1.0 eV
E) 1.0 eV, 4.6 eV
Answer
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