FT IR Spectroscopy
How do you turn a signal recorded in the time domain into a frequency domain signal?

Fourier transformation
Measurement of peak areas
None of the above
By use of a Michelson interferometer

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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
None of these
Selectively filter certain wavelengths from a beam of I.R. radiation

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

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

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