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A soap bubble assumes a spherical surfac...

A soap bubble assumes a spherical surface. Which of the following statement is wrong

A

The soap film consists of two surface layers of molecules back to back

B

The bubble encloses air inside it

C

The pressure of air inside the bubble is less than the atmospheric pressure, that is why the atmospheric pressure has compressed it equally from all sides to give it a spherical shape

D

Because of the elastic property of the film, it will tend to shrink to as small a surface area as possible for the volume it has enclosed

Text Solution

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The correct Answer is:
C
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ERRORLESS -SURFACE TENSION-Exercise
  1. For which of the two pairs, the angle of contact is same

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  2. If the surface of a liquid is plane, then the angle of contact of the ...

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  3. A soap bubble assumes a spherical surface. Which of the following stat...

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  4. If two soap bubbles of different radii are connected by a tube

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  5. The surface of soap solution is 25xx10^-3Nm^-1. The excess pressure in...

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  6. Prove that if two bubbles of radii r(1) and r(2)(r(1)ltr(2)) come in c...

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  7. The excess pressure due to surface tension in a spherical liquid drop ...

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  8. A long cylinderical glass vessel has a small hole of radius r at its b...

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  9. If the surface tension of a soap solution is 0.03 MKS units, then the ...

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  10. The excess pressure inside a soap bubble is

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  11. The pressure of air in a soap bubble of 0.7 cm diameter is 8 mm of wat...

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  12. Pressure inside two soap bubbles are 1.01 and 1.02 atmospheres. Ratio ...

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  13. A capillary tube of radius r is dipped in a liquid of density rho and...

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  14. Two spherical soap bubbles of radii r1 and r2 in vacuume coalesce unde...

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  15. The adjoining diagram shows three soap bubbles, A , B and C prepared b...

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  16. When a large bubble rises from the bottom of a lake to the surface its...

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  17. A soap bubble in vacuum has a radius of 3 cm ad another soap bubble in...

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  18. The volume of an air bubble becomes three times as it rises from the b...

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  19. Excess pressure inside one soap bubble is four times that of other. Th...

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  20. There are two liquid drops of different radii. The excess pressure ins...

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