FT IR Spectroscopy
In scanning electron microscopy

a specimen is fixed and then coated with transition metal
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

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FT IR Spectroscopy
What is meant by rotating frame of reference?

That the detector rotates around the sample
If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space
None of these
That the sample is spun rapidly in the applied field

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

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

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