# Bohr's semiclassical aproach

by NEWO
Tags: aproach, bohr, semiclassical
 P: 97 Hi there guys, I just need something clarifying if possible. Is the Bohr semiclassical aprroach to the energy levels of the hydrogen atom, Where in Schrodingers equation, the potential is the coulomb potential??? If you could clarify what the semiclassical approach it I would be very grateful Thanks in advance newo
Emeritus
 Emeritus Sci Advisor PF Gold P: 11,155 Bohr's semiclassical aproach What makes the Bohr model "semi"-classical is that he required that the angular momentum of the electron be quantized (integer multiples of $\hbar$). Using this requirement : $$L = mvr = n\hbar$$ and the classical equation for circular motion under a central (electrostatic) force : $$F_{centripetal} = mv^2/r = ke^2/r^2$$ gives you Bohr's results for the energies, radii and orbital velocities of the different orbits.
 P: 97 its okay now I found out how to do it you get the answer as being $$[13.5/n^2]$$