12 6 DE BROGLIE’S EXPLANATION OF BOHR’S
SECOND POSTULATE OF QUANTISATION
Of all the postulates, Bohr made in his model of the atom,
perhaps the most puzzling is his second postulate It states
that the angular momentum of the electron orbiting around
the nucleus is quantised (that is, Ln = nh/2p; n  = 1, 2, 3 …) Why should the angular momentum have only those values
that are integral multiples of h/2p