Physics Circle home Student Login

Home›Chapters›Surface Tension PYQs›Angle of Contact & Capillarity›Question 6

MHT CET 2026 (15 Apr, Shift 1) · Angle of Contact & Capillarity

Angle of Contact & Capillarity question from MHT CET 2026 (15 Apr, Shift 1)

Q6MHT CET 2026 · 15 APR · SHIFT 1Easy

Angle of Contact & Capillarity

Water rises to a height 33 cm in a capillary tube. If cross-sectional area of capillary tube is reduced to 1/3rd1/3^{rd} of its initial area then water will rise to a height of

Show answer and solution

Answer: (a)

  1. h∝1r∝1Ah \propto \frac{1}{r} \propto \frac{1}{\sqrt{A}}
  2. A′=A3⇒h′=h3=33 cmA' = \frac{A}{3} \Rightarrow h' = h\sqrt{3} = 3\sqrt{3}\text{ cm}
  3. So the answer is (a) 333\sqrt{3} cm.
Report a mistake

More questions on Angle of Contact & Capillarity