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Engineering Physics · Q61

Atomic and Molecular Physics

Engineering and GATE · Engineering Physics · question 61

Q61

The vibrational spectrum of a molecule exhibits a strong line with P and R branches at a frequency _1 and a weaker line at a frequency _2 . The frequency _3 is not shown up. Its vibrational Raman spectrum shows a strongly polarized line at frequency _3 and no feature at _1 and _2 . Which of the following statements is correct?

The vibrational spectrum of a molecule exhibits a strong line with P and R branches at a frequency and a weaker line at a frequency . The frequency is not shown up. Its vibrational Raman spectrum shows a strongly polarized line at frequency and no feature at and .
Which of the following statements is correct?
A.
The molecule could be linear
Answer
B.
The molecule lacks a centre of inversion
C.
arises from a symmetric stretching mode
D.
arises from a bending mode

Answer: Option A

Solution

Answer: Option A
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