A rod of mass \'M\' and length \'2L\' is suspended at its middle by a wire. It exhibits torsional
Channel: Doubtnut
Date: 2020-01-03

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 :