A liquid wets a solid completely. The meniscu | vedclass

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(B) When a liquid wets a solid completely,the adhesive forces between the liquid and solid molecules are stronger than the cohesive forces between the

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Concave

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(B) When a liquid wets a solid completely,the adhesive forces between the liquid and solid molecules are stronger than the cohesive forces between the liquid molecules themselves.This results in an angle of contact $	heta$ that is less than $90^{\circ}$.For any liquid where the angle of contact $	heta < 90^{\circ}$,the shape of the meniscus in a capillary tube is concave.

$A$ liquid wets a solid completely. The meniscus of the liquid in a sufficiently long tube is

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