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The heat evolved for the rise of water when one end of the capillary tube of radius r is immersed vertically into water is : (Assume surface tension=T and density of water to be p)

\[\begin {array} {1 1} (a)\;\frac{2 \pi T}{pg} & \quad (b)\;\frac{\pi T^2}{pg} \\ (c)\;\frac{2 \pi T^2}{pg} & \quad (d)\;none\;of\;these \end {array}\]
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Someone answer this please
answered Apr 24 by vermasrijan

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