STANDARD Physics Capillarity MCQ Question
A capillary tube (I) is dipped in water. Another identical tube (II) is dipped in a soap-water solution. Which of the following shows the relative nature of the liquid columns in the two tubes?
(diagram of option 1)
(diagram of option 2)
(diagram of option 3)
(diagram of option 4)
Correct Answer
Detailed Explanation
The surface tension of a soap solution is less than that of water. As h ∝ S, the height of liquid raised in the capillary tube is less for soap solution and more for pure water. Hence, option (C) is correct.
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