# A metallic wire of diameter d is lying horizontally o the surface of water. The maximum length of wire so that is may not sink will be

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A metallic wire of diameter d is lying horizontally o the surface of water. The maximum length of wire so that is may not sink will be
A. sqrt((2T)/(pidg))
B. sqrt(2piT dg)
C. sqrt((2piT)/(dg))
D. sqrt((dg)/(2piT))

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Correct Answer - A
2Tl cos theta=pil^(2) ldgrArr r=sqrt((2T)/(pi dg))