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Laminar flow of a liquid means...

Laminar flow of a liquid means

A

Regular gradation of velocity for layers in passing from one layer to the next layer of a liquid

B

Showing constancy in the velocity of layers of a liquid

C

Increase in the velocity of layers from surface to bottom of a liquid

D

All

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It means all layers move with same velocity.
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To study the laminar flow of a liquid through a narrow tube, the following formula is used V=(pi P r^(4))/(8 eta l) . Given P = 76 cm of Hg , r = 0.28 cm , V = 1.2 cm^(2)s^(-1) , l = 18.2 cm If these quantities are measured to the accuracy of 0.5 cm of Hg, 0.01 cm, 0.1 cm^(3) s^(-1) and 0.1 cm respectively, find maximum percentatge error in the value of eta .

What is laminar flow of liquid?

AAKASH SERIES-STATES OF MATTER-LECTURE SHEET - EXERCISE - V (LEVEL - I MAIN)(STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. Regarding dipole - dipole attractions the incorrect statement is

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  3. In ion-dipole forces, the magnitude of the interaction energy (E)

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  4. Hydration of different ions is an example of

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  5. If thermal energy predominates over intermolecular forces, then the su...

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  6. A liquid is in equilibrium with its vapours at its boiling point. On t...

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  7. A relation between vapour pressure and temperture is known as

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  8. Find incorrect match

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  9. The surface tension of water at 20°C is 72.75 dyne cm^(-1) . Its value...

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  10. A manifestation of surface tension is :

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  11. On heating a liquid, its surface tension

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  12. Generally liquid drops assume spherical shape because

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  13. Laminar flow of a liquid means

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  14. Find incorrect statement

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  15. In SI system, the units of coefficient of viscosity, eta are

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  16. Poise stands for

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  17. The viscosity of four liquids P, Q, R and S are 85, 11.4, 18 and 12.3 ...

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  18. With rise in temperature of a liquid, the viscosity

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  19. The thickness of window panes of old buildings is more at the bottom t...

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  20. Among the following compounds viscosity is highest for

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