The length of the string of a conical pendulum is \( \ell \) and th...

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The length of the string of a conical pendulum is \( \ell \) and the mass of the bob is \( m \). The point of
\( \mathrm{P} \) support is at a height \( h \) above the horizontal plane

W in which the bob revolves. The tension in the string is :-
(1) \( \frac{\mathrm{mg} \ell}{\mathrm{h}} \)
(2) \( \frac{\mathrm{mg} \sqrt{\ell^{2}-h^{2}}}{\ell} \)
(3) \( \frac{\mathrm{mgh}}{\ell} \)
(4) \( \frac{\mathrm{mg} \ell}{\sqrt{\ell^{2}-\mathrm{h}^{2}}} \)
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