Total charge -Q is uniformly spread along the length of a ring of radius R . A small test charge+q of mass m is kept at the centre of the ring and is given a gentle push along the axis of the ring.
(a) Show that the particle executes a simple harmonic oscillation.
(b) Obtain its time period.
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Explanation:
Write down the expression for the moment of inertia of a thin uniform circular ring about an axis passing through the centre and perpendicular the plane of the ring
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