Unified Experimental Analysis of Planck Constant and Photons Rest Mass Constant

Whether the rest mass of photon is zero is one of the fundamental problems in physics. Einstein used Planck’s constant h as a constant of the photon energy, indicating that the photon is no rest mass. In this paper, the analysis and research results of the absorption spectroscopy, Planck’s blackbody radiation equation, Einstein’s photoelectric effect theory and experiment show that Planck’s constant h is not the energy constant of the photon but rather the energy constant of the nucleus outside orbit electrons or metal conduction band free electrons. A constant hm of photons rest mass is assumed. It is more reasonable that the photon rest mass constant and Planck’s constant are used to explain the absorption spectra, blackbody radiation and the photoelectric effect, and other related physical experiment. The argument about Planck’s constant h and constant hm of photons rest mass put forward new ideas for the development of relevant theoretical and experimental physics.