A thin rod of length L and mass M is bent at the middle point O at an

1.	A thin rod of length L and mass M is bent at the middle point O at an angle 60º, The moment of inertia of the rod about an axis passing through O and perpendicular to heplane of the rod will be(a) ML2/6(b) ML2/12(c) ML2/24(d) ML2/3
Answer» Correct Option (b) ML²/12 Explanation : Moment of inertia of a uniform rod about one end = ml²/3 Momento of inertia of the system in which rod is bent = 2x(M/2)(L/2)²/3 = ML²/12 Note : Here axis is perpendicular to the plane of the rod.

A thin rod of length L and mass M is bent at the middle point O at an angle 60º, The moment of inertia of the rod about an axis passing through O and perpendicular to heplane of the rod will be(a) ML2/6(b) ML2/12(c) ML2/24(d) ML2/3

Answer»

Correct Option (b) ML²/12

Explanation :

Moment of inertia of a uniform rod about one end = ml²/3

Momento of inertia of the system in which rod is bent

= 2x(M/2)(L/2)²/3 = ML²/12

Note : Here axis is perpendicular to the plane of the rod.

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A thin rod of length L and mass M is bent at the middle point O at an angle 60º, The moment of inertia of the rod about an axis passing through O and perpendicular to heplane of the rod will be(a) ML2/6(b) ML2/12(c) ML2/24(d) ML2/3

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