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A long glass capillary tube of radius r is placed horizontally and filled with water (angle of contact for water glass =0^ ). If the tube is made vertical, then the length of water column that remains in the capillary is T r g where ' T ' is the surface tension of water, is density of water. Find

Correct answer

4

Step-by-step solution

P₀- 2 T R + g h-P₀= 2 T R h= 4 T R g

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