A liquid rises in a capillary tube when the angle of contact is:

A n a c u t e o n e

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A n o b t u s e o n e

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π / 2 r a d i a n

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π r a d i a n

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Solution

The correct option is A $A n a c u t e o n e$
If angle of contact is acute, liquid rises in a capillary tube whereas if angle of contact is obtuse, liquid is depressed in a capillary tube.
Hence, option A is correct.

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Due to capillary action, a liquid will rise in a tube, if the angle of contact is

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