Two narrow bores of diameters of 3 mm ánd 6 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water, what is the difference in levels in two limbs of the tube ? Surface tension of water at the temperature of experiment is 7.3 × 10-² N/m. Take the angle of contact to be zero and density of water to be 1 × 10³ kg¯³.

Two narrow bores of diameters of 3 mm ánd 6 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water, what is the difference in levels in two limbs of the tube ? Surface tension of water at the temperature of experiment is 7.3 × 10-² N/m. Take the angle of contact to be zero and density of water to be 1 × 10³ kg¯³.