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A water proofing agent chages the angle ...

A water proofing agent chages the angle of contact from

A

acute to `(pi//2)`

B

`(pi//2)` to obtuse

C

acute to obtuse value

D

obtuse to acute value

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The correct Answer is:
C
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NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-C.U.Q
  1. A drop of water breaks into two droplets of equal size. In this proces...

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  2. It is difficult to fill a capillary tube with mercury that with water ...

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  3. A water proofing agent chages the angle of contact from

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  4. A liquid will not wet the surface of a solid if the angle of contact ...

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  5. The liquid meniscus in a capillary tube will be convex, if the angle o...

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  6. The rise of liquid into capillary tube is h(1). If the apparatus is ta...

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  7. The nature of r-h graph (r is radius of capillary tube and h is capill...

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  8. If L is the capillary rise or dip and A the cross sectional area of th...

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  9. Water rises in a capillary tube to a height H, when the capillary tube...

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  10. The excess pressure inside a soap bubble is

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

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  12. If two soap bubbles of different radii are connected by a tube

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  13. A capillary tube (A) is dipped in water. Another identical tube (B) is...

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  14. If a big shop of liquid at 27^(@) is broken into number of small drops...

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  15. With the increase in temperature the angle of contact glass and water

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  16. When a capillary tube is dipped into a liquid, the liquid neither rise...

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  17. The water proofing agents:

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  18. A capillary is dipped in water vessel kept on a freely falling lift, t...

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  19. A vertical glass capillary tube, open at both ends, contains some wate...

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  20. Which of the following graphs may represent the relation between capil...

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