Photon Momentum Using Wavenumber
A photon is an elementary particle, the quantum of the electromagnetic field including electromagnetic radiation (such as light) and the force carrier for the electromagnetic force. The momentum of a photon depends only on its wavenumber.
The momentum equals the reduced Planck constant times the wavenumber.
Formula
![Copy to Clipboard QuantityVariable["p", "Momentum"] == Quantity[1, "ReducedPlanckConstant"]*QuantityVariable[OverTilde["ν"], "SpectroscopicWavenumber"]](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/974/9744417a-6887-4c1b-97d5-e80563c80544/Webpage/FormulaImage.png)
| symbol | description | physical quantity | 
|---|---|---|
| p | momentum | "Momentum" | 
| ν̃ | spectroscopic wavenumber | "SpectroscopicWavenumber" | 
Forms
Examples
Get the resource:
| In[1]:= | ![ResourceObject["Photon Momentum Using Wavenumber"]](images/974/9744417a-6887-4c1b-97d5-e80563c80544-io-1-i.en.gif) | 
| Out[1]= |  | 
Get the formula:
| In[2]:= | ![FormulaData[ResourceObject["Photon Momentum Using Wavenumber"]]](images/974/9744417a-6887-4c1b-97d5-e80563c80544-io-2-i.en.gif) | 
| Out[2]= |  | 
Use some values:
| In[3]:= | ![FormulaData[
 ResourceObject[
  "Photon Momentum Using Wavenumber"], {QuantityVariable[
   "p","Momentum"] -> 
   Quantity[1.325`*^-27, ("Kilograms" "Meters")/("Seconds")]}]](images/974/9744417a-6887-4c1b-97d5-e80563c80544-io-3-i.en.gif) | 
| Out[3]= |  | 
 
                 
                