Ex/26 : A capillary of 1 mm in radius is immersed in a beaker of mercury. The mercury level inside the tube is found to be 0.536 cm below the level of reservoir. Determine the angle of contact between the mercury and the glass. (Surface tension of mercury is 0.405 N / m and density is 13.6 × 10° kg/m' , (g = 9.8 m/s?) %3D
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