Two masses m and 
are connected at the two ends of a massless rigid rod of length λ . The rod is suspended by a thin wire of torsional constant k at the center of mass of the rod–mass system (see figure). Because of torsional constant k, the restoring torque is τ = kθ. for angular displacement θ. If the rod is rotated by θ 0. and released, the tension in it when it passes through its mean position will be:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
where 
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