Physics

Problem

The energies of the third and second Bohr orbits of hydrogen are

-1.51\,\text{eV}

and

-3.40\,\text{eV}

respectively. Calculate the frequency of the photon emitted when the electron moves from the third to the second orbit. (Take

h=6.63\times10^{-34}\,\text{J\,s}

1\,\text{eV}=1.60\times10^{-19}\,\text{J}