• # question_answer A metallic wire of density d is lying horizontal on the surface of water. The maximum length of wire so that it may not sink will be A)  $\sqrt{\frac{2Tg}{\pi d}}$                    B)  $\sqrt{\frac{2\pi T}{dg}}$C)  $\sqrt{\frac{2T}{\pi dg}}$               D)  any length

$mg=2TL\Rightarrow \pi {{r}^{2}}Ldg=2TL\Rightarrow \pi {{r}^{2}}dg=2T.$ This relation is independent of L.