Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETPhysicsMechanical Properties of Fluids

Why is the surface tension of a liquid independent of the area of the surface?

Options

  1. ASurface tension decreases with increasing surface area.
  2. BSurface tension increases with increasing surface area.
  3. CSurface tension is unaffected by changes in surface area.
  4. DSurface tension depends on the shape of the surface.

Correct answer

C. Surface tension is unaffected by changes in surface area.

Step-by-step solution

Correct Option is : (C) Surface tension is unaffected by changes in surface area.

Practice Mechanical Properties of Fluids on Quantrex Academy →

More from Mechanical Properties of Fluids

In the measurement of viscosity of liquids using terminal velocity experiment, spherical balls of same radius but having different densities are used. The variation of the terminal 2026A submarine is designed to withstand an absolute pressure of 100 atm. How deep can it go below the water surface ? (Consider the density of water = 1000 kg m ⁻³ , 1 atm = 1 10⁵ Pa 2026Water flows in a streamline motion through a horizontal pipe of circular cross-section as shown in the figure. The pressure difference of water between P and Q is 15 Nm ⁻² . The ar 2026Consider a water tank shown in the figure. It has one wall at x=L and can be taken to be very wide in the z direction. When filled with a liquid of surface tension S and density , 2025A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is 0.07 ~N ~m ⁻¹ , then the excess force required to take it away 2024An ideal fluid is flowing in a non-uniform cross-sectional tube X Y (as shown in the figure) from end X to end Y . If K₁ and K₂ are the kinetic energy per unit volume of the fluid 2024The amount of energy required to form a soap bubble of radius 2   cm from a soap solution is nearly: (surface tension of soap solution = 0 . 03   N   m - 1 ) 2023The viscous drag acting on a metal sphere of diameter 1 ~mm , falling through a fluid of viscosity 0.8 ~Pa s with a velocity of 2 ~m ~s ⁻¹ is equal to 2023 Full Mechanical Properties of Fluids list All NEET PYQs