Question

In a surface tension experiment with a capillary tube, water rises upto 0.1 m. If the same experiment is repeated in an artificial satellite revolving around the earth, then the water will rise in the capillary upto a height of

• A. 0.1 m
• B. 9.8 m
• C. 0.98 m
• D. full length of capillary tube

Answer 1

The correct option is D full length of capillary tube

since $h=\frac{2S}{R\rho g}$
In artificial satellite, there is a state of weightlessness $g=0$
$\therefore h=\infty$, But there will be no overflowing of water in tube and water stands up to maximum height in tube available with new surface of higher radius of curvature.