That is
L = nh/2p
(12 5)
(iii) Bohr’s third postulate incorporated into atomic theory the early
quantum concepts that had been developed by Planck and Einstein It states that an electron might make a transition from one of its
specified non-radiating orbits to another of lower energy When it
does so, a photon is emitted having energy equal to the energy
difference between the initial and final states