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you are here->
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Physics
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Class 11
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Surface Tension
Surface Tension
Theory
Theory
Procedure
Animation
Simulator
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1)
Why are rain drops spherical in shape?
Capillarity.
Downward movement.
Surface tension.
Acceleration due to gravity.
2)
The force of cohesion is maximum in ________.
Gases
Solids
Ideal gas
Liquids
3)
Which of the following liquids show capillary depression?
None of these.
Mercury
Water
Glycerine
4)
Where do we find adhesive force?
All of the above.
Between similar molecules.
Between different molecules.
Between polar molecules.
5)
Choose the correct statement.
Cohesive force of mercury is larger than that of water.
Water sticks to the glass of windows due to adhesion.
All of the above.
The S.I. unit of surface tension is N/m.
6)
Liquids which have more adhesive force than cohesive force show ________.
Concave meniscus
Convex meniscus
No fixed shape
Plane meniscus
7)
What is the angle of contact for water and glass?
90⁰
180⁰
8⁰
0⁰
8)
What happens in the capillary rise of a liquid, when the radius of the capillary tube increases?
Become zero.
Decreases.
Increases.
Remains unchanged.
9)
When there are no external forces, what is the shape of a liquid drop determined by?
None of these.
Gravitational force.
Viscosity.
Surface tension.
10)
If the angle of contact between a solid and a liquid is 90⁰, then:
Cohesive force > adhesive force
Cohesive force >> adhesive force
Cohesive force = adhesive force
Cite this Simulator:
amrita.olabs.edu.in,. (2015). Surface Tension. Retrieved 23 May 2022, from amrita.olabs.edu.in/?sub=1&brch=5&sim=224&cnt=540
