Surface tension is a fundamental property of liquid surfaces that dictates how they interact with their surroundings. This phenomenon causes a liquid boundary to behave as if it were covered by a thin, elastic membrane under tension. Surface Tension is measured in Newton per Meter (N/m) in the SI system. Check out the other units in the table below- Surface tension is defined as the ratio of the surface force F acting on a liquid to the length d along which the force operates. Let’s derive the surface tension dimensional formula in M, L, T format as asked in JEE Main: Thus, Dimensions Of Surface Tension = [M1L0T-2] (boxed in your answer). Mastering this step ensures you select or check formulae accurately in the exam. Surface tension , represented by the symbol γ (alternatively σ or T), is measured in force per unit length. Its SI unit is newton per metre but the cgs unit of dyne per centimetre is also used, particularly in the older literature.
