The Photon Energy calculator computes radiant energy in the Planck-Einstein relationship (E = h•ν) based on(h) and a frequency of radiation (ν).
INSTRUCTIONS: Choose units and enter the following:
Photon Energy (E): The calculator returns the energy in electron volts (eV). However, this can be automatically converted to other energy units via the pull-down menu.
Theis used to compute radiant energy in joules based on and a frequency of radiation in hertz.
Max Planck provided thewhich calculated energy in Joules from: his constant , and the frequency in Hertz. The formula is:
In 1900, German physicist Max Planck provided the solution and launched a new era in physics with an idea that departed drastically from accepted concepts. Classical physics assumed that radiant energy was continuous; that is, it could be emitted or absorbed in any amount. Based on data from blackbody radiation experiments, Planck proposed that radiant energy could be emitted or absorbed only in discrete quantities, like small packages or bundles. Planck gave the name quantum to the smallest quantity of energy that can be emitted in the form of electromagnetic radiation. His theory gave rise to this equation.