Photoelectric Effect Calculator
Use the vacuum single-photon model with wavelength in nanometers and work function in electronvolts.
- Photon energy
- Maximum kinetic energy
- Threshold frequency
- Stopping voltage
A QUICK WALKTHROUGH
How to use this tool
- Enter wavelength and work function.
- Calculate the photon and electron quantities.
- If photon energy is below the work function, no emission occurs.
Model and limits
Ideal vacuum single-photon model: ignores surface details, contact potentials, energy distributions and measurement uncertainty. Threshold frequency is φ/h; stopping voltage equals Kmax/e. No electron is emitted when Kmax≤0. Inputs are calculated locally, not uploaded or saved.
GOOD TO KNOW
Common questions
What units are required?
Wavelength in nm and work function in eV.
Does this model real materials?
No. It is an ideal vacuum single-photon calculation.