In IR Spectroscopy, an Absorption Occurs Any Time

Multiple Choice

In IR spectroscopy, an absorption occurs any time

A) a vibration is located in a magnetic field.
B) vibrating bonds are conjugated.
C) any vibrating bond interacts with a light wave vibrating with the same frequency.
D) a vibrating dipole moment interacts with a light wave vibrating with the same frequency.
E) the mass of one atom involved in the vibration is much less than the mass of the others.