Question

a capillary tube having inner diameter 1 mm and the outer diameter 4 mm hangs vertically from one arm of the balance. if the lower end of the tube just touches a liquid of surface tension 3 × 10-2 n/m, assuming that the liquid wets the tube. find the downward force due to surface tension acting on the tube.(ans: f= 4.71 x 10-4 n)​

Answer 1

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