The angle of contact for pure water and ...

The angle of contact for pure water and clean glass surface is

zero

`90^(@)`

`15^(@)`

`137^(@)`

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The value of the angle of contact for pure water and mercury with the surface of glass respectively-

Water rises up in a glass capillary upto a heigh 10 cm, while mercury falls down by 3.5 cm in the same capillary. If the angles of contact for water-glass and mercury-glass are taken as 0^(@) and 135^(@) respectively, compare the surface tensions of water and mercury. [Given density of water = 10^(3) kg m^(-3) , density of mercury = 13.6 xx 10^(3) kg m^(-3) ]

A long capillary tube of radius 0.2 mm is placed vertically inside a beaker of water. If the tube is now pushed into water so that only 5.0 cm of its length is above the surface, then determine the angle of contact between the liquid and glass surface.

Calculate the rise of water inside a clean glass capillary tube of radius 0.1 mm, when immersed in water of surface tension 7xx10^(-2)N//m. The angle of contact between water and glass is zero, density of water is 1000 kg/ m^(3),g=9.8m//s^(2)

Water rises up in a glass capillary upto a height of 9.0cm , while mercury falls down by 3.4 cm in the same capillary. Assume angles of contact for water glass and mercury glass 0^(@) and 135^(@) respectively. Determine the ratio of surface tension of mercury and water (cos 135^(@)=-0.71) .

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The angle of contact for a liquid which wets the surface of a solid is

NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Angle of contact )

A liquid will not wet the surface of a solid if the angle of contact ...
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When liquid does not rises in a capillary tube , the angle of contact...
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The angle of contact is obtuse when liquid
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The meniscus of mercury in the capillary tube is
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The angle of contact for pure water and clean glass surface is
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The angle of contact between liquid and solid does not depend upon
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A capillary tube of radius r is placed in a liquid I the angle of con...
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The angle of contact between a solid and a liquid is a characteristic...
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A water proofing agent chages the angle of contact from
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Which one of the following represents correctly the variations of surf...
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Nature of meniscus for liquid having angle of contact as 0^@ is
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A liquid rises in a capillary tube when the angle of contact is:
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When a cylindrical tube is dipped vertically into a liquid the angle o...
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If the lower end of a capillary tube touches a liquid whose angle of...
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The liquid meniscus in a capillary tube will be convex, if the angle o...
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If a glass rod is dipped in mercury and withdrawn out, the mercury doe...
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Angle of contact varies between
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A glass plate is partly dipped vertically in the mercury and the angle...
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The temperature of a liquid in a vessel is gradually raised the angl...
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An imaginary line is a drawn in a liquid surface . At what angle with ...
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