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

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

1.	A capillary tube (A) is dipped in water. Another identical tube (B) is dipped in a soap-water solution. Which of the following shows the relative nature of the liquid columns in the two tubes ?
Answer» Solution :In case of water, the meniscus shape is concave upwards. Also according to FORMULA `H=(2Tcostheta)/(rpg)` The surface tension (T) of soap solution is less than water. Therefore, rise of soap solution in the capillary TUBE is less as compared to water. As in the case of water the meniscus shap of soap solution is concave upwards. So CORRECT CHOICE is c.

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

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