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When the electrons are aligned either parallel or antiparallel to the direction of the external magnetic field, the electrons will precess about the axis at a frequency that is proportional to which of the following?

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When the electrons are aligned either parallel or antiparallel to the direction of the external magnetic field, the electrons will precess about the axis at a frequency that is proportional to which of the following?

(a) Applied magnetic field

(b) Electron magnetic moment

(c) Applied magnetic field and electron magnetic moment

(d) Neither applied magnetic field not electron magnetic moment

I have been asked this question during an online exam.

My question comes from Electron Spin Resonance topic in division Electron Spin Resonance Spectrometers of Analytical Instrumentation

1 Answer

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Right answer is (c) Applied magnetic field and electron magnetic moment

Best explanation: When the electrons are aligned either parallel or antiparallel to the direction of external magnetic field, the electrons will start to precess about the axis at a frequency that is proportional to both applied magnetic field and electron magnetic moment.

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