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Surface tension of soap solution is 2 xx...

Surface tension of soap solution is `2 xx 10^(-2) N//m` . The work done in producing a soap bubble of radius 2 cm is

A

`64pi xx 10^(-6) J`

B

`32pi xx 10^(-6) J`

C

`16 pi xx 10^(-6) J`

D

`8 pi xx 10^(-6) J`

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The correct Answer is:
A
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ERRORLESS -SURFACE TENSION-Exercise
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  6. A soap film of surface tension 3 xx 10^(-2)N//m formed in a rectangula...

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  7. Energy required to form a soap bubble of diameter 20 cm will be (Surfa...

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  8. The work done in blowing a soap bubble of volume V is W. The work done...

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  9. Surface tension of soap solution is 2 xx 10^(-2) N//m . The work done ...

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  10. The execc pressure inside the first soap bubble is three times that in...

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  11. When a capillary tube is dipped in water, water rises upto 8cm in the ...

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  12. A bubble of 8 mm diameter is formed in the air. The surface tension of...

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  13. The height upto which water will rise in a capillary tube will be:

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  14. Water rises to a height of 10 cm in capillary tube and mercury falls t...

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  15. The angle of contact between glass and water is 0^@ and surface tensi...

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  16. A drop of water breaks into two droplets of equal size. In this proces...

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  17. A soap bubble of radius R is blown. After heating the solution a secon...

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  18. A false statement is

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  19. The diameter of rain-drop is 0.02 cm . If surface tension of water be ...

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  20. Water rises to a height of 16.3 cm in a capillary of height 18 cm abov...

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