Einstein photoelectric equation (hν = φ + K_max)
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hν = φ + K_max
What each symbol means
| Symbol | What it stands for |
|---|---|
| h | Planck constant (J·s) |
| ν | Frequency of incident radiation (Hz) |
| φ | Work function of the metal surface (J) |
| K_max | Maximum kinetic energy of emitted photoelectrons (J) |
When to use this
Single-photon absorption picture; valid when photon energy hν is sufficient to overcome work function (hν ≥ φ for emission). K_max is the maximum over all emitted electrons.