11 November 2015 57 1K Report

It is well known that Bohr model is not totally right. But I recently discovered a very curious inconsistency (if I am right) which I haven't seen explained anywhere.

The first postulate of Bohr theory is that the Orbital momentum of the electron is quantized L=mvr=nh  (where h  means the Dirac constant). This means that if there is a transition between level n=5  to n=1  (Balmer series) the orbital momentum changes by 4h  !!! Based on this rule and his second postulate Bohr finds the right energy for this transition (and all others as well). But this transition is a release of just one photon and a photon has spin 1h  . It can add to L as (h,0,−h)  . So it can change the orbital momentum with 1,0  or −1  and not by 4.  I'm very surprised to make such conclusion.

Am I wrong here?

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