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A horizontal rod of mass m and length L ...


A horizontal rod of mass m and length L is pivoted at one end The rod's other end is supported by a spring of force constant k. The rod is displaced by a small angle `theta` from its horizontal equilibrium position and released. The angular frequency of the subsequent simple harmonic motion is

A

`sqrt((3k)/m)`

B

`srqt(k/(3m))`

C

`sqrt((3k)/m+(3g)/(2L))`

D

`sqrt(k/m)`

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