Calculate the ratio of energies of photons produced due to transition of electron of hydrogen atom from its,
Second permitted energy level to the first level?

The energy of an electron in nth orbit of hydrogen atom is

Calculate the photon energy in electron- volt for radiation of wavelength 1 metre.

Calculate the energy required to excite an electron from first orbit of the hydrogen atom to the third orbit?

Explain various series of spectral lines of spectrum of hydrogen atom and drawn energy level diagram.

The energy required to remove an electron from a gaseous atom from its ground state is called

A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom make a transition from the upper level to the lower level?