A rod of length \( \mathrm{L} \) is hinged at one end. It is brought to a horizontal position an...

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A rod of length \( \mathrm{L} \) is hinged at one end. It is brought to a horizontal position and released. The angular velocity
W of the rod when it is in vertical position is
(1) \( \sqrt{2 \mathrm{~g} / \mathrm{L}} \)
(2) \( \sqrt{3 \mathrm{~g} / \mathrm{L}} \)
(3) \( \sqrt{g / 2 L} \)
(4) \( \sqrt{\mathrm{g} / \mathrm{L}} \)
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