Q light rod of lenth 1m is pivoted at its centre and two masses of 5kg and 2kg are hung
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A uniform rod of length L and mass M is pivoted at the centre. Its two ends are attached to two springs of equal spring constants k. The springs are fixed to rigid supports as shown in the figure, and the rod is free to oscillate in the horizontal plane. The rod is gently pushed through a small angle θ in one direction and released. The frequency of oscillation is –

(A) 12π2kM−−√12π2kM (B) 12πkM−−√12πkM (C) 12π6kM−−√12π6kM (D) 12π24kM−−−√

(A) 12π2kM−−√12π2kM (B) 12πkM−−√12πkM (C) 12π6kM−−√12π6kM (D) 12π24kM−−−√
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