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When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? | |
A. | The processional frequency of the nucleus increases [Wrong Answer] |
B. | The nucleus spins faster [Wrong Answer] |
C. | The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field [Correct Answer] |
D. | none of the above [Wrong Answer] |