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does angle of contact depends on the inclination of the solid surface to the liquid surface.

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Assertiion: Angle of contact does not depend upon the inclination of the solid in the liquid. Reason: Angle of contact depends on cohesive and adhesive force.

Assertion: Pressure on the concave side of the liquid will be greater than pressure on the convex side if the liquid surface is curved. Reason: Excess pressure depends on the angle of contact of the liquid surface with the solid surface.

Friction does not depend on the nature of the surface in contact.

Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. The direction of the excess pressure in the meniscus of a liquid of angle of contact 2pi//3 is

The value of contact angle for kerosene with solid surface.

Friction depends on the _____ of two surfaces in contact.

A uniform vertical tube of circular crss section contaons a liquid. The contact angle is 90^@ . Consider a diameter of the tube lying in the surface of the liquid. The surface of the right of this diameter pulls the surface on the left of it. What keeps the surface on the left in equilibrium?

When a liquid is in contact with a solid , the angle between the surface of the solid and the tangent drawn to the surface of the liquid at that point of contact , measured on the side of the liquid , is called .

SL ARORA-Mechanical Properties of fluids-Exercise
  1. Tow soap bubbles A and B are formed at the two open ends of a tube. Th...

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  2. It becomes easier to spray the water in which some soap is dissolved. ...

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  3. does angle of contact depends on the inclination of the solid surface ...

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  4. While sewing, a person often wets the end of a thread before, trying t...

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  5. The force required by a man to move his legs immersed in water is smal...

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  6. Explain why (a). The angle of contact of mercury with galss is obtus...

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  7. Whan air is blown in between two balls suspended close to each other, ...

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  8. Define the term fluid.

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  9. Modulus of rigidity of a liquid

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  10. Define density. Is it a scalar or vector quantity ? Give its unit and ...

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  11. State Pascal's law. How can it be demonstrated?

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  12. State the principle of working of hydraulic press.

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  13. Name two practical applications of Pascal's law.

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  14. ATMOSPHERIC PRESSURE

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  15. Deoes the atmospheric pressure vary with the height above the earth's ...

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  16. What is meant by one torr of pressure ?

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  17. What is one bar of pressure ?

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  18. Write the the relation between torr and millibar.

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  19. What are the factors, which effect the atmospheric pressure at a place...

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  20. Express 1 atmosphere in terms of Nm^-2 and bar.

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