Spectroscopy

Q1: Why are rotational transitions of little use to a spectroscopist?

A Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions

B All of the above

C Because rotational transitions are extremely rare

D Because the energy required to induce a rotational transition is so small that it cannot be measured

ANS:C - Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions

Explain the answer.



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