Which of the Following Is NOT an Accurate Description of Nuclear

question 16

Multiple Choice

Which of the following is NOT an accurate description of nuclear magnetic resonance (NMR) ?

• A)The energy difference between the two spin states depends on the strength of the external magnetic field.
• B)The nuclei are in resonance with electromagnetic radiation when they absorb energy.
• C)When a proton is aligned in the direction of an external magnetic field, its energy is lower than when it is aligned against the direction of an external magnetic field.
• D)The high energy radiation needed for protons to flip the spin is in the ultraviolet domain of the electromagnetic spectrum.

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