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Mechanical Properties Of Fluids

Question

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Define angle of contact. Is it constant for liquid?

Solution

Angle of contact is the angle between the tangents drawn at the point of contact, one along the free surface and second along the solid surface inside the liquid.
Angle of contact is not fixed for a given liquid but depends upon the solid surface in contact with liquid and media which exists above the free surface of liquid.

Some More Questions From Mechanical Properties of Fluids Chapter

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Define pressure.

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