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Force necessary to pull a circular plate...

Force necessary to pull a circular plate of 5cm radius from water surface for which surface tension is 75 dynes/cm, is ?

A

30 dynes

B

60 dynes

C

750 dynes

D

750 `pi` dynes

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -SURFACE TENSION-Exercise
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  2. In the glass capillary tube, the shape of the surface of the liquid de...

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  3. Force necessary to pull a circular plate of 5cm radius from water surf...

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  4. The property of surface tension is obtained in

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  5. The surface tension of a liquid with rise of temperature.

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  6. If two glass plates are quite nearer to each other in water, then ther...

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  7. On mixing the salt in water, the surface tension of water will

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  8. The maximum force, in addition to the weight required to pull a wire o...

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  9. Consider a liquid contained in a vessel. The liquid solid adhesive for...

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  10. At which of the following temperatures, the value of surface tension o...

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  11. If a glass rod is dipped in mercury and withdrawn out, the mercury doe...

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  12. Mercury does not wet glass, wood or iron because

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  13. Surface tension of a liquid is found to be influenced by

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  14. When a drop of water is dropped on oil surface, then

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  15. Two pieces of glass plate one upon the other with a little water betwe...

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  16. Small droplets of a liquid are usually more spherical in shape than la...

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  17. A thin metal disc of radius r floats on water surface and bends the su...

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  18. A 10 cm long wire is placed horizontally on the surface of water and i...

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  19. It is better to wash the clothes in hot soap solution. Why?

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  20. Due to which of water, tiny particles of camphor dance on the surface ...

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