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If pressure at half the depth of a lake ...

If pressure at half the depth of a lake is equal to 2//3 pressure at the bottom of the lake then what is the depth of the lake ?

A

10 m

B

20 m

C

60 m

D

30m

Text Solution

Verified by Experts

The correct Answer is:
B
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ERRORLESS -SURFACE TENSION-Exercise
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  7. In capillary pressure below the curved surface of water will be

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  9. The pressure inside a small air bubble of radius 0.1mm situated just b...

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  10. Tow soap bubbles A and B are formed at the two open ends of a tube. Th...

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  11. If two soap bubbles of different radii are connected by a tube

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  12. The excess pressure inside a spherical soap bubble of radius 1 cm is ...

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  13. In Jager's method, at the time of bursting of the bubble

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  14. The excess pressure inside a soap bubble is thrice the excess pressur...

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  15. When two capillary tubes of different diameters are dipped vertically,...

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  16. A liquid rises in a capillary tube when the angle of contact is:

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  17. In the state of weightlessness, a capillary tube is dipped in water, t...

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  18. Two parallel glass plates are dipped partly in the liquid of denstiy '...

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  19. Water rises in a capillary tube to a certain height such that the upwa...

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  20. It is not possible to write directly on blotting paper or newspaper w...

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