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Work done in forming a soap bubble of ra...

Work done in forming a soap bubble of radius R is W. Then workdone is forming a soap bubble of radius '2R' will be :

A

2W

B

4W

C

`W//2`

D

`W//4`

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The correct Answer is:
B
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MOTION-SURFACE TENSION-Exercise - 3 | Section- A Previous Year Problems | NEET/Other
  1. A liquid will not wet the surface of a solid if the angle of contact ...

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  2. Excess of pressure inside a soap bubble is

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  3. In a capillary tube experiment, a vertical 30 cm long capillary tube i...

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  4. Radius of a capillary is 2xx10^(-3)m. A liquid of weight 6.28xx10^(-4)...

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  5. A capillary tube of radius r can support a liquid of weight 6.28xx10^(...

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  6. Water rises in a capillary tube upto a certain height such that the u...

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  7. Which one of the following will make its way most easily through the t...

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  8. Inside a drop excess pressure is maximum in

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  9. When charge is given to a soap bubble, it showns :

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  10. The diameter of one drop of water is 0.2 cm. The work done in breaking...

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  11. Calculate the force required to separate the glass plates of area 10^(...

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  12. If two bubble of radii 0.03 cm and 0.04 cm come in contact with each o...

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  13. Work done in forming a soap bubble of radius R is W. Then workdone is ...

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  14. In a U-tube diameter of two limbs are 0.5 cm and 1 cm respectively and...

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  15. A liquid will not wet the surface of a solid if the angle of contact ...

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  16. Internal radius of a capilary tube is (1)/(2)cm and surface tension of...

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  17. The U-tabe with limbs of diameters 5 mm and 2 mm contains water of sur...

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  18. Surface tension arises due to :

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  19. Area of liquid film is 6xx10cm^(2) and surface tension is T = 20 dyne/...

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  20. A small sphere falls from rest in a viscous liquid. Due to frication, ...

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