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Calculator for Mass, Energy and Momentum of Photons

Calculates the mass, energy and momentum of a single photon or a number of photons from the wavelength.

The rest mass of a photon is 0. But photons travel at the speed of light. The mass of a photon is calculated with the formula m=ℎ/(c*λ) with Planck's constant ℎ, the speed of light c in meters per second and the wavelength λ in meters. Einstein's equation E=mc² applies to energy. Finally, the momentum is the mass times the speed of light, p=mc.
Please enter the wavelength and the number of photons. The default for number of photons is 1*10⁰, i.e. 1.

Wavelength:	* 10^-12-9-6-30369 m
Number of photons:	* 10^036912151821242730
Mass:	* 10^-51-48-45-42-39-36-33-30-27-24-21-18-15-12-9-6-30 kg
Energy:	* 10^-42-39-36-33-30-27-24-21-18-15-12-9-6-30 J
Impulse:	* 10^-42-39-36-33-30-27-24-21-18-15-12-9-6-30 kg * m / s

Example: a photon in green light has a wavelength of 530*10^-9 meters. This means it has a mass of around 4.17*10^-36 kilograms.

For wavelengths see the spectrum calculator.

Alle Angaben ohne Gewähr.

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