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MHT CET 2021 (22 Sep, Shift 1) · Angle of Contact & Capillarity

Angle of Contact & Capillarity question from MHT CET 2021 (22 Sep, Shift 1)

Q51MHT CET 2021 · 22 SEP · SHIFT 1Medium

Angle of Contact & Capillarity

Water rises in a capillary tube of radius ' $r$ ' up to a height ' $h$ '. The mass of water in a capillary is ' $m$ '. The mass of water that will rise in a capillary tube of radius $\frac{r}{3}$ will be

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Answer: (b)

Weight of column $mg = 2\pi rT$ , so $m \propto r$ .
Radius $\frac{r}{3} \Rightarrow$ mass $\frac{m}{3}$ .
So the answer is (b) $\frac{m}{3}$ .

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