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Two equal negative charges -q are fixed ...

Two equal negative charges -q are fixed at the points `(0,alpha)` and `(0, -alpha)` on the y-axis. A positive charge Q is released from rest at the point `(2alpha, 0)` on the x-axis. The charge Q will

A

execute oscillatory but not simple harmonic motion

B

execute simple harmonic motion about the origin

C

move to infinity

D

move to the origin and remain at rest.

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The correct Answer is:
A
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