FT IR Spectroscopy
What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample?

None of these
Spin - spin - spin relaxation
Spin - lattice relaxation
Spin - spin relaxation

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FT IR Spectroscopy
What does the Michelson interferometer do?

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

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FT IR Spectroscopy
In FT-NMR, how are nuclei excited?

By an intense pressure
None of these
By radio-frequency radiation whose frequency is swept across a predetermined range
By an intense pulse of radiation which contains a wide range of frequencies

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