Question Detail
Question
What unit of energy is typically used for the work function of metals, as seen in the example for copper?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Page 4's example states, 'Copper has a work function of 4.5 eV.' While Joules are also an energy unit, electron volts are commonly used for atomic and subatomic energies.
Hint
Check the units used for the work function in the example provided in the document.