Physical meaning of Planck’s constant

The photon energy with its corresponding frequency, wavelength and distance can be determined by the main physical parameters (mass, distance, time) of the particles (electrons, nucleons, molecules) as a result of their excitation, transition, vibration and rotation. All calculations for mass, distance and time for all particles give the same value which corresponds and equals to Planck's constant in all electromagnetic bands, so the physical meaning of Planck's constant is interpreted which represents these three main physical parameters as a result of the physical mechanisms responsible for excited states of nuclei, atoms and molecules. As a result of the equality between Planck's constant and the mentioned three physical parameters a new equation of calculating exact distance of all emitted photons from nuclei, atoms and molecules from radio waves to gamma rays is deduced.