A small electric dipole $$\vec{p}_0$$, having a moment of inertia $$I$$ about its center, is kept at a distance $$r$$ from the center of a spherical shell of radius $$R$$. The surface charge density $$\sigma$$ is uniformly distributed on the spherical shell. The dipole is initially oriented at a small angle $$\theta$$ as shown in the figure. While staying at a distance $$r$$, the dipole is free to rotate about its center.

If released from rest, then which of the following statement(s) is (are) correct?

[$$\varepsilon_0$$ is the permittivity of free space.]