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When water rises in a capillary tube of ...

When water rises in a capillary tube of radius `r` to height h, then its potential energy `U_(1)` if capillary tube of radius 2r is dipped in same water then potential energy of water is `U_(2)` then `U_(1):U_(2)` will be

A

`2:1`

B

`1:2`

C

`4:1`

D

`1:1`

Text Solution

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The correct Answer is:
D
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ALLEN -ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 2 (One or more than one correct answer)
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  2. In a U-tube diamter of two limbs are 0.5 cm and 1 cm respectively and ...

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  3. When water rises in a capillary tube of radius r to height h, then its...

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  4. There are two thin films A of liquid and B of polythene, identical in ...

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  5. A capillary of the shape as shown is dipped in a liquid. Contact angle...

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  6. The spring balance A reads 2 kg with a block m suspended from it. A ba...

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  7. A steel ball is floating in a trough of mercuty. If we fill the empty ...

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  8. A ballong filled with air is weighted so that it barely floats in wate...

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  9. A small bulb is placed at the bottom of a tank containing water to a d...

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  10. A solid uniform ball having volume V and density rho floats at the int...

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  11. A sperical ball of radius r and relative density 0.5 is floating in eq...

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  12. Three blocks, labeled A, B and C are floating in water as shown in the...

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  13. The cylindrical tube of a spray pump has radius R, one end of which ha...

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  14. A ballong filled with air is weighted so that it barely floats in wate...

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  15. A cylindrical container of radius 'R' and height 'h' is completely fil...

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  16. A small uniform tube is bent into a circle of radius r whose plane is ...

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  17. A U-tube of base length l filled with the same volume of two liquids o...

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  18. A U-tube of base length l filled with the same volume of two liquids o...

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  19. A non-uniform rod of mass m, length l and radius r is having its centr...

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  20. A square box of water has a small hole located the bottom corners. Whe...

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