Two capillary tubes of radii 0.3 cm and 0.6 cm are dipped in the same liquid, the ratio of heights to which the liquid will rise in the tubes is _____.

Q.1 (vi) Two capillary tubes of radii 0.3 cm and 0.6 cm are dipped in the same liquid, the ratio of heights to which the liquid will rise in the tubes is _____.

A. 1 : 2

B. 2 : 1

C. 1 : 4

D. 4 : 1

Doubtly Asked 28 Oct 2026 Board exam · July 2025 hsc 12th Save WhatsApp Report

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Answer: B. 2 : 1

Answer: (b) 2 : 1

Capillary rise \(h = \dfrac{2T\cos\theta}{r\rho g}\), so for the same liquid \(h \propto \dfrac{1}{r}\). Hence \(\dfrac{h_1}{h_2} = \dfrac{r_2}{r_1} = \dfrac{0.6}{0.3} = \dfrac{2}{1}\).

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report

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Two capillary tubes of radii 0.3 cm and 0.6 cm are dipped in the same liquid, the ratio of heights to which the liquid will rise in the tubes is _____.

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