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A large force is required to draw apart ...

A large force is required to draw apart normally two glass plates enclosing a thin water film. Why?

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In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Assertion: A large force is required to draw apart normally two glass plates enclosing a thin water film. Reason: Water works as glue and sticks two glass plates.

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SL ARORA-Mechanical Properties of fluids-Exercise
  1. The density of water is more than the density of air. Even then the cl...

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  2. A mercury barometer always reads less than actual pressure.

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  3. A large force is required to draw apart normally two glass plates encl...

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  4. Oil spreads on cold water but remains as drop on hot water.

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  5. Tow soap bubbles A and B are formed at the two open ends of a tube. Th...

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

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

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

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

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

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

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  12. Define the term fluid.

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  13. Modulus of rigidity of a liquid

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

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

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  16. State the principle of working of hydraulic press.

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

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  18. ATMOSPHERIC PRESSURE

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

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  20. What is meant by one torr of pressure ?

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