FT IR Spectroscopy
The frequency of precession, the transition frequency and the Larmor frequency are

different terms for the same frequency
same terms for the same frequency
different terms for the different frequency
same terms for the different frequency

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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
By an intense pulse of radiation which contains a wide range of frequencies
None of these
By an intense pressure

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FT IR Spectroscopy
In scanning electron microscopy

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

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

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