AIPMT PRELIMS 2009 Physics Moment of Inertia MCQ Question
Four identical thin rods each of mass M and length ℓ, form a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is :
2/3 Mℓ²
13/3 Mℓ²
1/3 Mℓ²
4/3 Mℓ²
Correct Answer
Detailed Explanation
The moment of inertia for each rod about the center is calculated using the parallel axis theorem. The total moment of inertia is the sum of the individual moments of inertia of the rods.
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