Question

The radius of a capillary tube is 0.025 mm. It is held vertically in a liquid whose density is 0.8 x 10° kg/m", surface tension is 3.0 x 102 N/m and for which the cosine of the angle of contact is 0.3. Determine the height upto which the liquid will rise in the tube. (g = 10 m/s“). (b) If the capillary is taken down in water slowly until its upper end comes in level of water, will the water come out from this end?

Answer 1

Answer:

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