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Hello everybody, I got two questions on my assignment that I am stuck on...it'd be great if you guys can give me some hints to get me in the right direction.

1) Using the uncertainty principle, find the minimum value (in MeV) of the kinetic energy of a nucleon confined within a nucleus of radius [tex]R=5x10^-15 m.[/tex]

2) Show that the electron orbits in the semi-classical Bohr model are not real. Do this by showing that any attempt to measure the orbit radius to an accuracy [tex] \Delta{x}<<R_{n+1}-R_{n}[/tex] is the radius of the electron in the hydrogen atom, would cause an uncertainty in the energy [tex]E_{n}[/tex] which is larger than the binding energy in that orbit. (Hint: This problem requires that you make suitable approximations).

Of the two questions, I am more desperate for number 2 ...I don't know where to begin!!

1) Using the uncertainty principle, find the minimum value (in MeV) of the kinetic energy of a nucleon confined within a nucleus of radius [tex]R=5x10^-15 m.[/tex]

2) Show that the electron orbits in the semi-classical Bohr model are not real. Do this by showing that any attempt to measure the orbit radius to an accuracy [tex] \Delta{x}<<R_{n+1}-R_{n}[/tex] is the radius of the electron in the hydrogen atom, would cause an uncertainty in the energy [tex]E_{n}[/tex] which is larger than the binding energy in that orbit. (Hint: This problem requires that you make suitable approximations).

Of the two questions, I am more desperate for number 2 ...I don't know where to begin!!

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