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Surface tension of a sopa solution is 1....

Surface tension of a sopa solution is `1.9xx10^(-2) N//m`. Work done in blowing a bubble of 2.0 cm diameter will be

A

`7.6xx10^(-6) pi` joule

B

`15.2 xx10^(-6) pi` joule

C

`1.9xx10^(-6) pi` joule

D

`1xx10^(4) ` joule

Text Solution

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The correct Answer is:
B
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ERRORLESS -SURFACE TENSION-Exercise
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  5. What is ratio of surface energy of 1 small drop and 1 large drop, if 1...

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  6. The amount of work done in forming a soap film of size 10 cm x 10 cm i...

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  8. A liquid drop of diameter D breaks upto into 27 small drops of equal s...

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  9. One thousand small water drops of equal radii combine to form a big dr...

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  10. The work done in increasing the size of a soap film from 10 cm × 6 cm ...

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  11. If sigma be the surface tension, the work done in breaking a big drop...

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  12. A big drop of radius R is formed by 1000 small droplets of water, then...

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  13. When 10^(6) small drops coalesce to make a larger drop them the drop

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  14. Which of the following statements are true in case when two water drop...

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  15. 8000 identical water drops combine together to form a big drop. Then t...

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  16. The surface energy of liquid film on a ring of area 0.15 m^(2) is (sur...

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  17. 8 mercury drops coalesce to form one mercury drop, the energy changes ...

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  18. If work done in increasing the size of a soap film from 10 cm x 6 cm t...

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  19. A mercury drop of radius 1 cm is sprayed into 10^(6) drops of equal s...

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  20. When two small bubbles join to form a bigger one, energy is

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