if two masses each of ‘m’ are attached at distance ‘L/2’ from its centre on both sides

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A rod of mass ‘M’ and length ‘2L’ is suspended at its middle by a wire. It exhibits torsional oscillations, if two masses each of ‘m’ are attached at distance ‘L/2’ from its centre on both sides, it reduces the oscillation frequency by 20%. The value of ratio m/M is close to :
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Nov
A rod of mass ‘M’ and length ‘2L’ is suspended at its middle by a wire. It exhibits torsional oscillations, if two masses each of ‘m’ are attached at distance ‘L/2’ from its centre on both sides, it reduces the oscillation frequency by 20%. The value of ratio m/M is close to : A rod [...]
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Tags: A rod of mass 'M' and length '2L' is suspended at its middle by a wire. It exhibits torsional oscillations , if two masses each of 'm' are attached at distance 'L/2' from its centre on both sides , it reduces the oscillation frequency by 20%. The value of ratio m/M is close to : ,