Question

5. 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 (2019 Main, 9 Jan ID)
(a) 0.57
(b) 0.37
(c) 0.77
(d) 0.17​

Answer 1

Answer:

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