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A needle made up of iron floats on the w...

A needle made up of iron floats on the water surface due to

A

surface tension of water is greater than the weight

B

free surface energy of water surface

C

surface energy of water surface

D

viscus force of water

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The correct Answer is:
A
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NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Surface tension )
  1. The dimensions of surface tension are

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  2. The unit of surface tension in SI system is

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  3. A needle made up of iron floats on the water surface due to

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  4. If l is the length of an imaginary line drawn on free surface of liqui...

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  5. When mercury is in contact with glass m then the surface of mercury is

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  6. The surface of water in contact with glass wall is

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  7. Surface tension is due to

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

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  9. The effect of surface tension causes

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  10. When soap solution dissolves in water , then the surface tension of s...

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  11. The surface of a liquid has tendency to contract and minimise surface...

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  12. A drop of oil is placed on the surface of water. Which of the followin...

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  13. The surface tension of liuid at its boiling point

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  14. At critical temperature, the surface tension of a liquid

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  15. Which of the following have same dimensional formula as that of the s...

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  16. A brush is dipped in water and removed . The hair of the brush cling ...

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  17. The surface tension of water at freezing point is

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  18. What make it difficult to separate two glass sheets having a drop of ...

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  19. When a small quantity of soluable impurity is added to water , then i...

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  20. When a small quantity of partially soluable impurity is added to wa...

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