MCQ
Diatomic molecule $($rigid rotator$)$ has:
  • A
    $3$ translational degrees of freedom.
  • B
    $2$ rotational degrees of freedom.
  • Both $(a)$ and $(b).$
  • D
    All of the above.

Answer

Correct option: C.
Both $(a)$ and $(b).$
The diatomic molecules $($without vibration mode$)$ like $O_2$ and $N_2$ has three translational degrees of freedom and two rotational degrees of freedom.

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