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Answer: The photoelectric work function of a metal is the minimum energy that must be given to an electron to just liberate it from the surface of the metal.

\(\phi_0=h\nu_0=\dfrac{hc}{\lambda_0}\), where \(\nu_0\) is the threshold frequency. It is usually expressed in eV.

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report
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