Spectroscopy
Which of the following will oscillate the fastest?

A large mass on a stiff spring
A small mass on a weak spring
A small mass on a stiff spring
A large mass on a weak spring

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Spectroscopy
Why are rotational transitions of little use to a spectroscopist?

Because rotational transitions are extremely rare
Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions
Because the energy required to induce a rotational transition is so small that it cannot be measured
All of these

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Spectroscopy
Beer's Law states that

absorbance is equal to P0 / P
None of these
absorbance is proportional to both the path length and concentration of the absorbing species
absorbance is proportional to the log of the concentration of the absorbing species

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