Question

Select One Option Correct from the following :A positively charged thin metal ring of radius R is fixed in the x-y plane with its centre at the origin O. A negatively charged particle P is released from rest at the point (0, 0, $z_0$) where $z_0$ > 0. Then the motion of P is
(A)periodic for all values of $z_0$ satisfying$0 \ \textless \ z_0 \ \textless \ \infty$.
(B)simple harmonic for all values of $z_0$ satisfying $0 \ \textless \ z_0 \leq R.$
(C)approximately simple harmonic provided$z_0$ R.
(D)such that P crosses O and continues to move along the negative z axis towards$z = -\infty$.

Answer 1

Answer:

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Explanation: