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Two streamlines cannot cross each other....

Two streamlines cannot cross each other. Why ?

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When two streamlines cross each other, there will be two directions of flow at the point of intersections which will destroy the nature of the flow. It is impossible.
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PREMIERS PUBLISHERS-PROPERTIES OF MATTER-EVALUTION TEXTBOOK QUESTIONS & ANSWERS (SHORT ANSWER QUESTIONS)
  1. State Bernoulli's theorem.

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  2. What are the energies possessed by a liquid ? Write down their equatio...

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  3. Two streamlines cannot cross each other. Why ?

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  4. Define surface tension of a liquid. Mention its S.I. unit and dimensio...

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  5. How is surface tension related to surface energy?

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  6. Define angle of contact for a given pair of solid and liquid.

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  7. Distinguish between cohesive and adhesive forces.

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  8. What are the factors affecting the surface tension of a liquid?

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  9. What happens to the pressure inside a soap bubble when air is blown in...

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  10. What do you mean by capillarity or capillary action ?

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  11. A drop of oil placed on the surface of water spreads out. But a drop o...

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  12. State the principle and usage of Venturimeter.

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  13. Define stress and strain.

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  14. State Hooke's law of elasticity.

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  15. Define Poisson's ratio.

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  16. Explain elasticity using intermolecular forces.

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  17. Which one of these is more elastic, steel or rubber ? Why ?

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  18. A spring balance shows wrong readings after using for a long time. Why...

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  19. What is effect of temperature on elasticity ?

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  20. Write down the expression for the elastic potential energy of a st...

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