engineering recuitment BEL Probationary Engineers Mock Test 2025 Fluid Mechanics Properties of Fluids Surface Tension
The pressure inside a soap bubble of 50 mm diameter is 25 N/m2 above atmospheric pressure. The surface tension in soap film would be
1
0.156 N/m
2
0.312 N/m
3
0.624 N/m
4
0.078 N/m