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Q.

The moment of inertia of HCl molecule about an axes passing through its centre of mass perpendicular to the bond is (Given inter nuclear distance d=1.3 angstrom, mass of proton 1.7×10−27Kg.At.Wt of Cl is 35).

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a

2.79×10−42Kgm2

b

2.79×10−44Kgm2

c

2.79×10−47Kgm2

d

2.79×10−49Kgm2

answer is C.

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Detailed Solution

I=(m1m2m+m2)r2=1×351+351.32amu A0 = 3536×1.7×10-27×1.3×10-102 =2.79×10-47kgm2
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