In the relativistic treatment of the hydrogen atom (excluding QED), the 251/2 and 2P1/2 levels are found to be degenerate. Which of the following best describes why? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a The degeneracy is a result of the rotational symmetry of the H-atom b d e The Darwin and spin-orbit terms exactly cancel for both levels Each individual contribution (mass-velocity, Darwin and spin-orbit) to the splitting only depend on the total angular momentum quantum number j The mass-velocity and Darwin terms exactly cancel for both levels The degeneracy is due to a subtle symmetry of a 1/r potential when n = 1 and would no longer be the case for other n.
In the relativistic treatment of the hydrogen atom (excluding QED), the 251/2 and 2P1/2 levels are found to be degenerate. Which of the following best describes why? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a The degeneracy is a result of the rotational symmetry of the H-atom b d e The Darwin and spin-orbit terms exactly cancel for both levels Each individual contribution (mass-velocity, Darwin and spin-orbit) to the splitting only depend on the total angular momentum quantum number j The mass-velocity and Darwin terms exactly cancel for both levels The degeneracy is due to a subtle symmetry of a 1/r potential when n = 1 and would no longer be the case for other n.
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![In the relativistic treatment of the hydrogen atom (excluding QED), the 251/2 and 2P1/2 levels are found to be degenerate. Which of the
following best describes why?
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a The degeneracy is a result of the rotational symmetry of the H-atom
b
d
e
The Darwin and spin-orbit terms exactly cancel for both levels
Each individual contribution (mass-velocity, Darwin and spin-orbit) to the splitting only depend on the total angular momentum
quantum number j
The mass-velocity and Darwin terms exactly cancel for both levels
The degeneracy is due to a subtle symmetry of a 1/r potential when n = 1 and would no longer be the case for other n.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb818f2d4-8110-43f8-a3e7-ec2179ef66c8%2Fab8aafbd-08f7-41fc-89ba-300b8ebc5282%2Fpjlspl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In the relativistic treatment of the hydrogen atom (excluding QED), the 251/2 and 2P1/2 levels are found to be degenerate. Which of the
following best describes why?
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a The degeneracy is a result of the rotational symmetry of the H-atom
b
d
e
The Darwin and spin-orbit terms exactly cancel for both levels
Each individual contribution (mass-velocity, Darwin and spin-orbit) to the splitting only depend on the total angular momentum
quantum number j
The mass-velocity and Darwin terms exactly cancel for both levels
The degeneracy is due to a subtle symmetry of a 1/r potential when n = 1 and would no longer be the case for other n.
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