Photoelectric Effect Calculator

Calculate kinetic energy, stopping potential, and threshold values for the photoelectric effect

Common work functions: Cesium (2.1 eV), Sodium (2.3 eV), Aluminum (4.1 eV), Copper (4.7 eV), Gold (5.1 eV)

Formulas Used

Einstein's equation: KE_max = hf - φ = E_photon - φ

Stopping potential: V_s = KE_max / e

Threshold frequency: f_0 = φ / h

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: University Physics

by Young & Freedman

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.