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  • The lower end of a glass capillary tube is dipped into water. Water rises to a height of <img alt="\mathrm{8 \mathrm{~cm}}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B8%20%5Cm

The lower end of a glass capillary tube is dipped into water. Water rises to a height of \mathrm{8 \mathrm{~cm}}. The tube is then broken at a height of \mathrm{6 \mathrm{~cm}. }The height of water column \& angle of contact will be

Option: 1

\mathrm{6 m, \sin ^{-1} \frac{3}{4}}


Option: 2

\mathrm{6 \mathrm{~cm}, \cos ^{-1} \frac{3}{4}}


Option: 3

\mathrm{4 \mathrm{~cm}, \sin ^{-1} \frac{1}{2}}


Option: 4

\mathrm{4 \mathrm{~cm}, \cos ^{-1} \frac{3}{4}}


Answers (1)

best_answer

\mathrm{6 \mathrm{~cm}<8 \mathrm{~cm}, max \, \, height =6 \mathrm{~cm}.}

\mathrm{\mathrm{h}=\frac{2 \mathrm{~T} \cos \theta}{\mathrm{r} \rho \mathrm{g}}, here\, \, \mathrm{h} \alpha \cos \theta}

\mathrm{\Rightarrow \cos \theta=\frac{6}{8}}

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shivangi.shekhar

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