Calculate the threshold frequency (minimum frequency) required to eject electrons from a metal surface via the photoelectric effect. Light below this frequency will not cause electron emission regardless of intensity.
Enter your values below
Work function of the metal
Default: 4.136×10⁻¹⁵ eV·s
How this calculator works
Threshold frequency equals the work function divided by Planck's constant. This is the minimum frequency for the photoelectric effect.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
