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A smooth fixed rod is inclined at an ang...

A smooth fixed rod is inclined at an angle `theta` to the horizontal. At the bottom end of the rod there is a fixed charge `+Q`. There is a bead of mas m having charge q that can slide freely on the rod. The equilibrium separation of the bead from fixed charge Q is `x_(0)` Find the frequency of oscillation of the bead if it is displaced a little from its equilibrium position.

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