Modern Physics
Stopping Potential
The minimum potential needed to stop the most energetic photoelectrons.
Variables
eC
Electron charge
Allowed values: greater than 0
V0V
Stopping potential
hJ·s
Planck constant
Allowed values: greater than 0
fHz
Frequency
Allowed values: greater than 0
φJ
Work function
Allowed values: greater than 0
Your notes
0/5000
Constants in this formula
Other modern physics formulas with the same quantities
- Photon Energy (Planck) (Quantum Mechanics) shares Planck constant, Frequency
- Photoelectric Threshold Frequency (Quantum Mechanics) shares Work function, Planck constant
- Electron Wavelength (Accelerated) (Quantum Mechanics) shares Planck constant, Electron charge
- de Broglie Wavelength (Quantum Mechanics) shares Planck constant
- Particle in a Box Energy Levels (Quantum Mechanics) shares Planck constant
- Compton Scattering (Quantum Mechanics) shares Planck constant
Where this formula is listed
- Modern Physics formulas, under Quantum Mechanics, alongside Heisenberg Uncertainty Principle, Energy-Time Uncertainty, Time-Dependent Schrödinger Equation, Photon Momentum and Fermi Energy.
- In the modern physics list it comes after Photoelectric Effect and before de Broglie Wavelength.
- Modern Physics formula sheet, one of 41 formulas printed with symbol keys and SI units.
- The full formula index, grouped by category and topic.
Common questions
What is the Stopping Potential formula?
Stopping Potential is written eV₀ = hf − φ. The minimum potential needed to stop the most energetic photoelectrons. It belongs to Modern Physics, under Quantum Mechanics.
What are the units in eV₀ = hf − φ?
In SI units, e is electron charge, measured in C; V₀ is stopping potential, measured in V; h is planck constant, measured in J·s; f is frequency, measured in Hz; φ is work function, measured in J.