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A : The spiders and insects can run on t...

A : The spiders and insects can run on the surface of water.
R : Buoyant force balances the weight of insects.

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SL ARORA-Mechanical Properties of fluids-Exercise
  1. Define surface tension and surface energy. Write units and dimensions ...

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  2. Show that there is always an excess pressure on the concave side of th...

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  3. A : The spiders and insects can run on the surface of water. R : Buoy...

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  4. The excess pressure inside a soap bubble is

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  5. Define the term surface energy. Write down its dimensional formula and...

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  6. A liquid drop of diameter D breaks up into 27 tiny drops. Find the res...

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  7. What is capillarity? Derive an expression for the height to which the ...

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  8. A balloon filled with helium does not rise in air indefinitely but hal...

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

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

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  11. Explain why (a). To keep a piece of paper horizontal, you should blo...

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  12. A closed compartment containing gas is moving with some acceleration i...

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  13. A man is sitting in a boat which is floating in a pond. If the man dri...

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  14. A large open tank has two holes in the wall. One is a square hole of s...

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  15. A uniform capillary tube of inner radius r is dipped vertically into ...

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  16. A vessel contains oil (density =0.8gm//cm^3) over mercury (density =13...

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  17. Water from a tap emerges vertically downwards with an initial spped of...

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  18. A solid sphere of radius R and density rho is attached to one end of a...

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  19. Statement-1 : The stream of water flowing at high speed from a garden ...

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  20. A cylindrical tank has a hole of diameter 2r in its bottom. The hole i...

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