A) A has one vibrational mode and B has two
B) Both A and B have a vibrational mode each
C) A is rigid but B has a vibrational mode
D) A has a vibrational mode but B has none
Correct Answer: D
Solution :
[d] For A |
\[R={{C}_{p}}-{{C}_{\text{v}}}=7\] |
\[{{C}_{\text{v}}}=\frac{fR}{2}=22\Rightarrow f=\frac{44}{7}=6.3\] |
For B |
\[R={{C}_{p}}-{{C}_{\text{v}}}=9\] |
\[{{C}_{\text{v}}}=\frac{fR}{2}=21\Rightarrow f=\frac{42}{9}\] |
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