Question: Q 4 . 2 . You shine a light on a sheet of Iron ( work function 4 . 7 eV ) and observe electrons

Q4.2. You shine a light on a sheet of Iron (work function 4.7 eV) and observe electrons leaving that sheet with an energy of 1.25.02 eV.
Q4.4. What is the minimum uncertainty in the measurement of when (time) the electron left the metal? Answer in seconds.

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