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A capillary tube of radius r is lowered into a liquid of surface tension T and density . Given angle of contact . The work done by surface tension will be
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Correct option is B
Work done by surface tension 2πrTh=2πrT×2Trρg=4πT2ρgSimilar Questions
Free surface of a liquid has a tendency to contract and minimise its surface area. This tendency is due to:
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