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If work W is done in blowing a bubble of...

If work `W` is done in blowing a bubble of radius `R` from a soap solution. Then the work done is blowing a bubble of radius `2R` from the same solution is

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SL ARORA-Mechanical Properties of fluids-Exercise
  1. Surface tension of a liquid is numerically equal to

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  2. What is the work done in blowing a soap bubble of radius r and surface...

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  3. If work W is done in blowing a bubble of radius R from a soap solution...

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  4. The work done in blowing a soap bubble of volume V is W. The work done...

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  5. If the surface tension of water is 7.3 xx 10^(-2) N/m then the excess...

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  6. Which of the following is used widely in the manufacture of lead stora...

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  7. When there are no external forces, shape of the liquid is determined b...

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  8. Dettol antiseptic lotion is used for nursing cuts and wounds on the bo...

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  9. The excess pressure inside a soap bubble is thrice the excess pressur...

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  10. When a liquid is in contact with a solid , the angle between the surfa...

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  11. Angle of contacton increasing temp..

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  12. Angle of contacton adding soluble impurity to a liquid.

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  13. If the cohesive force is greater than the adhesive force , the liquid ...

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  14. A liquid which completely wet the solid , the angle of contact is ,

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  15. The rise of a liquid due to surface tension in a narrow capillary tube...

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  16. Sap rises from the roots of a plant to its leaves and branches due to

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  17. The height to which a liquid rises in a capillary tube isproportional ...

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  18. A 20 cm long capillary tube is dipped in water. The water rises up to ...

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  19. A lead sphere acquires a terminal velocity upsilon when falls in a vic...

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  20. Explain why (a) the blood pressure is humans is greater at the feet th...

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