Two masses \( m \) and \( \frac{m}{2} \) are connected at the two e...

Two masses \( m \) and \( \frac{m}{2} \) are connected at the two ends of a massless rigid rod of length \( l \). The rod is suspended by a thin wire of torsional constant \( k \) at the centre of mass of the rod-mass system (see figure). Because of torsional constant
\( P \) \( k \), the restoring torque is \( \tau=k \theta \) for angular displacement \( \theta \). If the rod is rotated by \( \theta_{0} \) and released, the tension in it when it passes through its mean position will be (2019 Main, 9 Jan I)
шишишеши
(a) \( \frac{2 k \theta_{0}^{2}}{l} \)
(b) \( \frac{k \theta_{0}^{2}}{l} \)
(c) \( \frac{3 k \theta_{0}^{2}}{l} \)
(d) \( \frac{k \theta_{0}^{2}}{2 l} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live