JEE Main & Advanced
JEE Main Paper (Held On 09-Jan-2019 Evening)
question_answer
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:
[JEE Main Online Paper (Held On 09-Jan-2019 Evening]