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
The processional frequency of the nucleus increases
None of these

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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 scanning electron microscopy

None of these
a specimen is not fixed and then coated with thin layer of a heavy metal
a specimen is fixed and then coated with thin layer of a heavy metal
a specimen is fixed and then coated with transition metal

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