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

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

ANSWER DOWNLOAD EXAMIANS APP

FT IR Spectroscopy
When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens?

None of these
The nucleus spins faster
The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field
The processional frequency of the nucleus increases

ANSWER DOWNLOAD EXAMIANS APP