Q.A particle of positive charge q is placed initially at rest at a point on the z axis with z = z0 > 0. In addition to the Coulomb force, the particle experiences a vertical force F_z = -k z, where k is a positive constant. The time period of small oscillations of the particle about equilibrium point is (JEE Advanced 2018)

2π √(ε₀ m / (k q))

2π √(m / k)

2π √(q / (k ε₀))

2π √(k / (m q))

The correct solution involves applying the fundamental concept to derive the final value step by step...

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