The two torsion pendula differ only by the addition of cylindrical masses as shown in the figure.
Channel: Doubtnut
Date: 2020-01-28

The two torsion pendula differ only by the addition of cylindrical masses as shown in the figure. The radius of each additional mass is `1//4` the radius fo the disc. Each cylinder and disc have equal mass. The ratio of time periods of the two torsion pendula is `p`. Then `27 p^(2) ` is.