Question:medium

Two equal charges \(q\) are kept fixed at \(-a\) and \(+a\) along the \(x\)-axis. A particle of mass \(m\) and charge \(\dfrac{q}{2}\) is brought to the origin and given a small displacement along the \(x\)-axis, then

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For two like charges, the midpoint along the axis is unstable equilibrium, while the perpendicular bisector is stable equilibrium -- giving SHM for transverse displacements.
Updated On: Apr 8, 2026
  • the particle executes oscillatory motion
  • the particle remains stationary
  • the particle executes, SHM along \(x\)-axis
  • the particle executes SHM along \(y\)-axis
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The Correct Option is D

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