Bohr’s theory of the hydrogen atom, its explanation for the appearance of an emission spectrum and the difference of Bohr’s theory from concepts of classical physics should be described.
The electrons are excited thermally when the light is used by an object. As a result, an emission spectrum comes. Line spectra consist of light only at specific, discrete wavelengths.
The emission of radiation given by an energized hydrogen atom to the electron falling from a higher-energy orbit to a lower orbit give a quantum of energy in the form of light. Based on electrostatic interaction and law of motion, Bohr derived the following equation.
where gets an integer values such as and so on. This is the energy of electron in orbital.