A capillary tube is dipped vertically in a li | vedclass

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Question

(B) The shape of the meniscus in a capillary tube is determined by the angle of contact $	heta$ between the liquid and the solid surface.If the liqui

Vedclass · Accepted Answer

$	heta = 0^o$

Vedclass · Answer

(B) The shape of the meniscus in a capillary tube is determined by the angle of contact $	heta$ between the liquid and the solid surface.If the liquid surface (meniscus) is hemispherical,it implies that the liquid perfectly wets the surface of the capillary tube.For a hemispherical meniscus,the tangent to the liquid surface at the point of contact is vertical,which means the angle of contact $	heta$ is $0^o$.Therefore,the correct option is $B$.

$A$ capillary tube is dipped vertically in a liquid. If the liquid surface is hemispherical,then the angle of contact $\theta$ is

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