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MHT CET 2020 (16 Oct, Shift 1) · Angle of Contact & Capillarity

Angle of Contact & Capillarity question from MHT CET 2020 (16 Oct, Shift 1)

Q58MHT CET 2020 · 16 OCT · SHIFT 1Medium

Angle of Contact & Capillarity

Water rises in a capillary tube of radius $r$ upto a height $h$ . The mass of water in a capillary is $m$ . The mass of water that will rise in a capillary of radius $\frac{r}{4}$ will be

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Answer: (b)

Weight of column $mg = 2\pi rT$ , so $m \propto r$ .
Radius $\frac{r}{4} \Rightarrow$ mass $\frac{m}{4}$ .
So the answer is (b) $\frac{m}{4}$ .

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