AIIMS 2018 Physics Gravitational Forces MCQ Question

Option B is correct because it accurately represents the derived period $T$ of the system based on the gravitational interactions outlined in the problem, specifically incorporating the factors derived from the forces $F_1, F_2,$ and $F_3$. The other options do not align with the derived formula for $T$, which is essential for understanding the oscillatory motion of the system under the influence of gravitational forces. By analyzing the relationships between the forces and their respective magnitudes, students can appreciate how gravitational interactions dictate the dynamics of the system.