Rotational MotionHard

Question

If the mass of hydrogen atom is 1.7 × 10-24 g and inter atomic distance in a molecule of hydrogen is 4 × 10-8 cm, then the moment of inertia [in kg-m2] of a molecule of hydrogen about the axis passing through the centre of mass and perpendicular to the line joining the atoms will be : -

Options

A.6.8 × 10-32
B.1.7 × 10-24
C.13.6 × 10-27
D.13.6 × 10-47

Solution

I .7 × 10-24 × 10-3 ×
= 1.7 × 10-24 × × 2 × 10-3 = 13.6 × 10-47

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