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A capillary tube (A) is dipped in water. Another identical tube (B) is dipped in soap water solution. Which of the following shows the relative nature of the liquid columns?

  1. A
    Height in B is higher than in A
  2. B
    Height in A and B are equal
  3. C
    Height in A is higher than in B
  4. D
    Liquid in B falls below the outside level

Solution & Step-by-step Explanation

Capillary rise is given by .Soap decreases the surface tension () of water.Since , the height of the liquid column in tube B (soap water) will be lower than in tube A (pure water).

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Try it yourself before checking the explanation above.

A capillary tube (A) is dipped in water. Another identical tube (B) is dipped in soap water solution. Which of the following shows the relative nature of the liquid columns?
A
Height in B is higher than in A
B
Height in A and B are equal
C
Height in A is higher than in B
D
Liquid in B falls below the outside level

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mechanicsfluidssurface tensioncapillary rise

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