JEE Mains 27-July-2022 Shift 1 Solved Paper

Two identical positive charges Q each are fixed at a distance of '2a' apart from each other. Another point charge q0 with mass ' m ' is placed at midpoint between two fixed charges. For a small displacement along the line joining the fixed charges, the charge q0 executes SHM. The time period of oscillation of charge q0 will be :