alleryStart learning →The minimum energy needed to free an electron from a metal is its:
AWarp function
BWork function
CWave function
DWind function
Answer & Solution
Correct answer: B. Work function
1. The electron is bound to the surface.
2. Freeing it costs a fixed amount.
3. That amount is the work function.
_Source: OpenStax University Physics Volume 3, Chapter 6, Photons and Matter Waves._
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