Derive an experession for the total energy of an electron in stationary state of hydrogen atom. Assuming the expression for the radius.

(a) Using Bohr's postulates, derive the expression for the total energy of the electron in the stationary states of the hydrogen atom. (b) Using Rydberg formula, calculate the wavelengths of the spectral lines of the first member of the Lyman series and of the Balmer series.

Obtain an expression for the total energy of an electron in the n^(th) orbit of hydrogen atom in terms of absolute constants.

The total energy of an electron revolving in the second orbit of hydrogen atom is

Write the expression for energy of an electron orbit of hydrogen atom.