Spectroscopy
A simple harmonic oscillator may absorb energy

at anytime.
when the frequencies match exactly
at no time.
when the amplitudes are the same.

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Spectroscopy
Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance?

Because absorbance is proportional to the concentration of the analyte, whereas %T is not
None of these
Because %T is dependant on the power of the incident radiation
Because %T cannot be measured as accurately as absorbance

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Spectroscopy
Vibrational spectroscopy is

an Infrared spectroscopy
a class of spectroscopic techniques which analyzes molecular motions
a flashlight through a prism and shake it
a large mass on a weak spring

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