In what ways does Bohr's model of Hydrogen atom violate the uncertainty principle?
The Bohr model is semi-classical. The electron orbits the nucleus in a circle at a particular, known distance r at a known speed v. Therefore, its momentum and position are precisely known at all times, in violation of the uncertainty principle.
The orbital angular momentum of the atom is given incorrectly in the Bohr model, too, and in fact there is no way to derive the correct angular momentum solutions from that model.
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