The gyromagnetic ratio of an electron in an hydrogen atom, according to Bohr model is

The electron in hydrogen atom is initially in the third excited state. When it finally moves to ground state, the maximum number of spectral lines emitted are

If the electron in a hydrogen atom moves from ground state orbit to 5^th orbit, then the potential energy of the electron

The energy levels with transitions for the atom are shown. The transitions corresponding to emission of radiation of maximum and minimum wavelength are respectively