Three consecutive absorption lines at 64.275 cm-1, 77.130 cm-12 and 8…

Engineering Physics · Q68

Atomic and Molecular Physics

Engineering and GATE · Engineering Physics · question 68

Q68

Three consecutive absorption lines at 64.275 cm^-1, 77.130 cm^-12 and 89.985 cm^-1 have been observed in a microwave spectrum for a linear rigid diatomic molecule. The moments of inertia

I_{A}

and

I_{B}

are (

I_{A}

is with respect to the bond axis passing through the centre of mass and

I_{B}

is with respect to an axis passing through the centre of mass and perpendicular to bond axis)

both equal to

\frac{ℏ ^{2}}{12.855 h c}

g-cm²

zero and

\frac{ℏ ^{2}}{12.855 h c}

g-cm²

Answer

both equal to

\frac{ℏ ^{2}}{6.427 h c}

g-cm²

zero and

\frac{ℏ ^{2}}{6.427 h c}

g-cm²

Answer: Option B

Solution

Answer: Option B

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