Two identical rods are joined to form an’X ’. The smaller angle between the rods isθ . The moment of inertia of the system about an axis passing through the point of intersection of the rods and perpendicular to their plane is
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a
∝ θ
b
∝ sin2θ
c
∝ cos2θ
d
Independent of θ
answer is D.
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Detailed Solution
Moment of inertia is a scalar quantity. It has nothing to do with angle θ , when the given axis passes through the point of intersection of the rods and is perpendicular to their planes.