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A capillary tube (A) is dipped in water....

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

B

(b)

C

(c)

D

(d)

Text Solution

Verified by Experts

The correct Answer is:
C
In case of water, the meniscus shape is concave upwards. Also according to ascent formula `h=(2Tcostheta)/(rrhog)`
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 shape of soap solution is also concave upwards.
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