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प्रश्न
What will be the shape of the liquid meniscus for the obtuse angle of contact?
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उत्तर
The shape of the liquid meniscus for the obtuse angle of contact will be convex.
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संबंधित प्रश्न
Draw a neat labelled diagram showing forces acting on the meniscus of water in a capillary tube.
Define the angle of contact.
'n' droplets of equal size of radius r coalesce to form a bigger drop of radius R. The energy liberated is equal to...................
(T =Surface tension of water)
`(a) 4piR^2T[n^(1/3)-1]`
`(b) 4pir^2T[n^(1/3)-1]`
`(c) 4piR^2T[n^(2/3)-1]`
`(d)4 pir^2T[n^(2/3)-1]`
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(a) the material
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(c) the outer radius
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(a) the material of the solid
(b) the material of the liquid
(c) the shape of the solid
(d) the mass of the solid
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Explain the phenomena of surface tension on the basis of molecular theory.
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What is capillarity?
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(Surface tension of water = 7 × 10-2 N/m)
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