Physics - SHM Question with Solution | TestHub

In an experiment to determine the period of a simple pendulum of length$1 \mathrm{m}$, it is attached to different spherical bobs of radii$r_1$and$r_2$. The two spherical bobs have uniform mass distribution. If the relative difference in the periods, is found to be$5\times {10}^{-4} \mathrm{s}$, the difference in radii,$\left|r_1-r_2\right|$is best-given by