The liquid meniscus in a capillary tube will | vedclass

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Question

(A) convex meniscus occurs when the cohesive forces between liquid molecules are stronger than the adhesive forces between the liquid and the containe

Vedclass · Accepted Answer

Greater than $90^{\circ}$

Vedclass · Answer

(A) convex meniscus occurs when the cohesive forces between liquid molecules are stronger than the adhesive forces between the liquid and the container wall.This typically happens when mercury is placed in a glass capillary tube.In a convex meniscus,the angle of contact $	heta$ is defined as the angle between the tangent to the liquid surface and the solid surface,measured inside the liquid.For a convex meniscus,this angle of contact is always greater than $90^{\circ}$.

The liquid meniscus in a capillary tube will be convex,if the angle of contact is

Similar Questions

$A$ liquid does not wet the sides of a solid,if the angle of contact is

Fill in the blanks:
$(i)$ If a liquid sticks to the glass,the angle of contact for the liquid-glass interface will be ....... (acute / obtuse).
$(ii)$ The angle of contact between mercury and glass is .......... (acute / obtuse).

The angle of contact between glass and mercury is......... $^o$

For which of the two pairs,the angle of contact is the same?

On what factors does the value of the angle of contact depend?

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