A string of length \( L \) is fixed at one end and carries a mass \( M \) at the other end. The ...

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A string of length \( L \) is fixed at one end and carries a mass \( M \) at the other end. The string makes \( 2 / \pi \) revolutions per second around the vertical axis through the fixed end as shown in the figure, then tension in the string is [BHU 2002; DPMT 2004]
(a) \( M L \)
(b) \( 2 M L \)
(c) \( 4 M L \)
(d) \( 16 M L \)
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