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Statement I: A hydrogen-filled balloon s...

Statement I: A hydrogen-filled balloon stops rising after it has attained a certain height in the sky.
Statement II: The atmospheric pressure decreases with height and becomes zero when the maximum height is attained.

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SL ARORA-Mechanical Properties of fluids-Exercise
  1. A solid sphere having volume V and density rho floats at the interface...

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  2. Statement-1: The size of a hydrogen increases as it rises in air. St...

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  3. Statement I: A hydrogen-filled balloon stops rising after it has attai...

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  4. Assertion: In taking into account the fact that any object, which floa...

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  5. Statement-1: Machine parts are jammed in winter. Statement-2: The vi...

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  6. Assertion:- For Reynolds number R(e)gt2000m, the flow of fluid is turb...

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  7. Assertion: The shape of an automobile is so designed that its front re...

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  8. Statement-1: A thin stainless steel needle can lay floating on a still...

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  9. Statement I: A needle placed carefully on the surface of water may flo...

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  10. Smaller drops of liquid resist deforming forces better than the larger...

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  11. When height of a tube is less than liquid rise in the capillary tube, ...

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  12. STATEMENT-1: The stream of water flowing at high speed from a garden h...

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  13. Assertion: To floats, a body must displace liquid whose weight is grea...

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  14. Statement I: A small drop of mercury is spherical where bigger drops a...

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  15. In the following questions, a statement of assertion is followed by a ...

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  16. If a liquid in a vessel is stirred and left to itself, the motion disa...

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  17. Assertion : The water rises higher in a capillary tube of small diame...

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  18. Assertion : Surface tensian decreases with increase in temperature. ...

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  19. The viscous force acting between two layers of a liquid is given by F/...

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  20. Assertion : Bernoulli's theorem is applicable only on laminar flow. ...

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