A long thin walled capillary tube of mass M=10 gm and radius r=7 mm is partially immersed in a liquid of surface tension T=0.75 N/s . The angle of contact between the liquid and the tube wall is 60∘. The amount of force needed to hold the tube vertically is N.(Neglect buoyant force on the tube.)

A long thin walled capillary tube of mass M=10 gm and radius r=7 mm is

1.	A long thin walled capillary tube of mass M=10 gm and radius r=7 mm is partially immersed in a liquid of surface tension T=0.75 N/s . The angle of contact between the liquid and the tube wall is 60∘. The amount of force needed to hold the tube vertically is N.(Neglect buoyant force on the tube.)
Answer» A long thin walled capillary tube of mass $M = 10 gm$ and radius $r = 7 mm$ is partially immersed in a liquid of surface tension $T = 0.75 N/s$ . The angle of contact between the liquid and the tube wall is $60^{\circ}$ . The amount of force needed to hold the tube vertically is $N$ . (Neglect buoyant force on the tube.)

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A long thin walled capillary tube of mass M=10 gm and radius r=7 mm is partially immersed in a liquid of surface tension T=0.75 N/s . The angle of contact between the liquid and the tube wall is 60∘. The amount of force needed to hold the tube vertically is N.(Neglect buoyant force on the tube.)

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