MCQ
The work function of a metal is
- AThe energy for the electron to enter into the metal
- BThe energy for producing $X-$ ray
- ✓The energy for the electron to come out from metal surface
- DNone of these
✓
Answer
Correct option: C.
The energy for the electron to come out from metal surface
c
(c) The work function is the minimum amount of energy (per photon) needed to eject an electron from the surface of a metal
(c) The work function is the minimum amount of energy (per photon) needed to eject an electron from the surface of a metal
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