FT IR Spectroscopy
The frequency of precession, the transition frequency and the Larmor frequency are

different terms for the same frequency
same terms for the same frequency
same terms for the different frequency
different terms for the different frequency

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FT IR Spectroscopy
When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens?

The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field
The nucleus spins faster
None of these
The processional frequency of the nucleus increases

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FT IR Spectroscopy
What does the Michelson interferometer do?

Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector
None of these
Split a polychromatic beam of radiation into its component wavelengths
Selectively filter certain wavelengths from a beam of I.R. radiation

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