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The relative velocity of two parallel la...

The relative velocity of two parallel layers of water is 8 cm/sec. If the perpendicular distance between the layers is 0.1 cm, then velocity gradient will be

A

90/s

B

80.5/s

C

80/5s

D

None of these

Text Solution

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The correct Answer is:
C
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MOTION-HYDROSTATIC, FLUID MECHANICS & VISCOSITY-EXERCISE-1 (OBJECTIVE PROBLEMS)
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  2. Water is flowing in a horizontal pipe of non-uniform area of corss sec...

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  3. The relative velocity of two parallel layers of water is 8 cm/sec. If ...

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  4. Water flows through a frictionless duct with a cross-section varying a...

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  5. Two water pipes P and Q having diameters 2 xx 10^(-2) m and 4 xx 10^(...

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  6. Water is flowing through a horizontal pipe of non-uniform cross- secti...

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  7. Water is flowing through a tube of non-uniform cross-section ratio of ...

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  8. Water is flowing through a horizontal pipe of non -uniform cross secti...

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  9. Water enters a horizontal pipe of non uniform cross section with a vel...

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  10. A water tank has a hole in its wall at a distance of 40 m below the fr...

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  11. There is a 1 mm thick layer of oil between a flat plate of area 10^(-2...

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  12. A steel shot of diameter 2 mm is dropped in a viscous liquid filled in...

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  13. An air bubble (radius 0.4 mm) rises up in water. If the coefficient of...

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  14. If an oil drop of density 0.95xx10^(3)kg//m^(3) and radius 10^(-4) cm ...

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  15. A tank is filled up to a height 2H with a liquid and is placed on a pl...

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  16. In a cylindrical vessel containing liquid of density rho there are two...

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  17. A large tank is filled with water ("density" = 10^(3)kg//m^(3)). A sma...

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  18. A U tube is rotated about one of it's limbs with an angular velocity o...

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  19. A rectangular tank is placed on a horizontal ground and is filled with...

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  20. Water is flowing steadily through a horizontal tube a of non uniform c...

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