engineering recuitment HPCL Junior Executive 2025 Mock Test Fluid Mechanics Properties of Fluids Surface Tension
A capillary tube of diameter 2 mm is dipped in a liquid of specific gravity 0.8. The liquid rises in tube by 15 mm making an angle of contact of 25o with the tube. Determine the surface tension of the liquid in contact with air and glass tube.
1
0.75 N/m2
2
0.065 N/m
3
874 kN/m
4
78.02 N/m3