If the polar moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system?
(a) Increases 4 times
(b) Increases 2 times
(c) Decreases 4 times
(d) Decreases 2 times
This question was posed to me in exam.
This key question is from Free Torsional Vibrations of a Single Rotor System topic in chapter Torsional Vibrations of Machine Dynamics