Question

Angle of contact physics class 11

Answer 1

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Your answer is
The angle between meniscus and containing side of a column of a liquid measured from the vertical side below the surface of liquid to the position of tangent to the meniscus to it's contact with side ...
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Answer 2

Answer:

The angle of contact is the angle made by the tangent to the liquid surface at the point of

contact with the solid surface inside the liquid.

★for liquids which wet the surface ϴ<90°.

★for mercury on clean glass ϴ≈135°.