Surface tension of two liquids (having same densities), T₁ and T₂, are measured using capillary rise method utilizing two tubes with inner radii of r₁ and r₂ where r₁>r₂. The measured liquid heights in these tubes are h₁ and h₂ respectively. [Ignore the weight of the liquid about the lowest point of miniscus]. The heights h₁ and h₂ and surfaces tensions T₁ and T₂ satisfy the relation:

Properties of Solids and Liquids: JEE Main 2026 Physics question

JEE Main 2026 · 21 Jan, Evening shift · Q31

JEE Main 202621 Jan, Evening shiftPhysicsMediumProperties of Solids and Liquids184× since 2002

Surface tension of two liquids (having same densities),

T_1

and

T_2

, are measured using capillary rise method utilizing two tubes with inner radii of

r_1

and

r_2

where

r_1>r_2

. The measured liquid heights in these tubes are

h_1

and

h_2

respectively. [Ignore the weight of the liquid about the lowest point of miniscus]. The heights

h_1

and

h_2

and surfaces tensions

T_1

and

T_2

satisfy the relation :

JEE Main 2026 Properties of Solids and Liquids Question with Solution (21 Jan Evening shift, Q31) | JEE Arc