Processing...

`E = hf`

Enter a value for all fields

The **Energy of a Photon** equation is used to find the Energy that a photon of light possesses where:

- `h` = Plank's constant
- `f` = frequency

**Energy(E):** The equation returns the Energy in Joules. However, this can be automatically converted to other energy units via the pull-down menu.

**Quantum Energy (E=h⋅v)**: Computes radiant energy in the Planck-Einstein relationship (E = h•ν) based on Planck's constant and a frequency of radiation.**Energy of a Photon****(E=h⋅f):**Computes the energy of a photon based on the frequency and Planck's Constant.**Photon Energy from Wavelength****(E=(h⋅c)/λ)**: Computes the energy of a photon based on Planck's constant (h), the speed of light (c) and the wavelength of the photon ( λ)**Photon Wavelength form Energy****(λ=(h⋅c)/E)**: Computes the wavelength of a photon based on Planck's constant (h), the speed of light (c) and the energy of the photon (E).**DeBroglie Wavelength****(λ=h/(m⋅v))**: Computes the wavelength of a particle based on the Planck's Constant and momentum (**p = m•v**).**Plank Constant (h)**: Fundamental constant in physics that plays a central role in quantum mechanics which relates the energy of a photon to its frequency

26.6 Proofs by Benjamin Crowell, Light and Matter licensed under the Creative Commons Attribution-ShareAlike license.