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A 15.4 MHz crystal generates the _________ resonance frequency.

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A 15.4 MHz crystal generates the _________ resonance frequency.

(a) Hydrogen

(b) Deuterium

(c) Tritium

(d) Helium

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This key question is from Fourier Transform NMR Spectroscopy in portion Nuclear Magnetic Resonance Spectrometer of Analytical Instrumentation

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The correct option is (b) Deuterium

Explanation: A 15.4 MHz crystal generates the deuterium resonance frequency. This resonance signal is used to lock the magnetic signal to clock frequency.

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