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

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

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FT IR Spectroscopy
Why is it advantageous to record many FID signals from the same sample and then add them together?

To increase sensitivity
To ensure that all target nuclei in the sample have been excited
None of these
To remove inaccuracies caused by fluctuations in the applied magnetic field

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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
None of these
The nucleus spins faster
The processional frequency of the nucleus increases

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