The Compton wavelength is a quantum mechanical property of a particle, defined as the wavelength associated with a photon scattered by an individual particle. It is well explained through the process called Compton scattering. The standard Compton wavelength is denoted…

In physics, the electron mass or mass of an electron or electron rest mass is one of the fundamental constants and is defined as the mass of a stationary electron and denoted by me. The value of electron mass is…

The Bohr model of the atom predicted the radius of the lowest-energy electron orbit. It is a physical constant which represents the most probable distance between the electron and the nucleus in a hydrogen atom in its ground state. We…

In the science of spectroscopy, under physics, the Rydberg constant is a physical constant relating to atomic spectra. It is denoted by R∞ for heavy atoms and RH for Hydrogen. Rydberg constant was first arising from the Rydberg formula as a fitting…

In advanced physics, the fine structure constant is synonymous with Sommerfeld’s constant. It is denoted by the Greek letter 𝜶 (alpha). It is a dimensionless physical constant. Fine-Structure Constant characterises the strength of electromagnetic interactions between any two elementary charged…

There is no ground rule defining the number of physical constants in physics. The number varies in accordance with the accepted physical theory.

Based on nature, the fundamental constants are grouped into three categories namely- Few Physical constants can take the dimensional form like – the speed of light; in contrast, few are dimensionless like- fine structure constant. Some physical constants are material…

Constants in physics are synonymous with physical constants sometimes Universal constants or fundamental physical constants are the physical quantity or entity which are believed to have a constant value in time and are universal.