Q6 of 39 Page 300

When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary.

If the level of liquid does not rise, it may be assumed that the surface tension is zero or the angle of contact is 90°, or both. Although it cannot be said with certainty whether the surface tension or the angle of contact is 90°.


Hence, both the option C and D is correct.

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