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

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

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

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

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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
Split a polychromatic beam of radiation into its component wavelengths
Selectively filter certain wavelengths from a beam of I.R. radiation
None of these

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