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Calculate the force required to separate...

Calculate the force required to separate the glass plates of area `10^(-2)m^(2)` with a film of water 0.05 mm thickness between them (surface tension of water `=70xx10^(-3)N//m)`)

A

28 N

B

14 N

C

50 N

D

38 N

Text Solution

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The correct Answer is:
A
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ERRORLESS -SURFACE TENSION-Exercise
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  11. Surface tension may be defined as

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  12. Energy needed in breaking a drop of radius R into n drops of radii r i...

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  16. Radius of a soap bubble is 'r ', surface tension of soap solution is T...

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  17. The work done in splitting a drop of water of 1 mm radius into 10^(6) ...

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  18. A spherical liquid drop of radius R is divided into eight equal drople...

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  19. The amount of work done in blowing a soap bubble such that its diamete...

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