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1 The linear mas s density of a thin rod AB of length L vari es from A to B as           L x 1 ) x ( 0 , where x is the distance from A. If M is the mass of the rod then its moment of inertia about an axis passing through A and perpendicular to the rod is:

1. 2 ML 12 5
2. 2 ML 7 3
3. 2 ML 5 2
4. 2 ML 18 7

Correct answer: 2 ML 18 7

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