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The radius of a soap bubble is r. the su...

The radius of a soap bubble is r. the surface tension of soap solution is T, keeping temperature constant, the radius of the soap bubble is doubled the energy necessary for this will be-

A

`24pir^(2)T`

B

`8pir^(2)T`

C

`12pir^(2)T`

D

`16pir^(2)T`

Text Solution

Verified by Experts

The correct Answer is:
A
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  2. Two soap bubbles of radii r(1) and r(2) equal to 4 cm and 5 cm are to...

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  3. The radius of a soap bubble is r. the surface tension of soap solution...

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

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  5. Excess of pressure inside a soap bubble is

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

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

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

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

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

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  11. Inside a drop excess pressure is maximum in

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

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

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

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

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

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

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

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

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

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