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A 10 cm long wire is placed horizontally...

A 10 cm long wire is placed horizontally on the surface of water and is gently pulled up with a force of `2xx10^(-2)N` to keep the wire in equilibrium. The surface tension of water in `(N)/(m)` is

A

0.1

B

0.2

C

0.001

D

0.002

Text Solution

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The correct Answer is:
A
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ERRORLESS -SURFACE TENSION-Exercise
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  6. Calculate the force required to separate the glass plates of area 10^(...

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  7. Oil spreads over the surface of water whereas water does not spread ov...

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  8. Cohesive force is experienced between

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  9. The property utilized in the manufacture of lead shots is

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  10. The dimensions of surface tension are

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  11. A wooden stick 2m long is floating on the surface of water. The surfac...

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  12. A thread is tied slightly loose to a wire frame as in figure and the f...

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  13. The force required to take away a flat circular plate of radius 2 cm f...

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  14. Surface tension may be defined as

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

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  16. The potential energy of molecule on the surface of a liquid as compare...

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  17. Two water droplets merge with each other to from a larger droplet. In ...

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  18. A drop of liquid of diameter 2.8 mm breaks up into 125 identical drops...

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

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

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