Water rises to a height of 2 cm in a capillary tube. If the tube is tilted 60° from the vertical, water will rise in the tube to a length of

Question

Water rises to a height of 2 cm in a capillary tube. If the tube is tilted 60° from the vertical, water will rise in the tube to a length of (A) 4.0 cm (B) 2.0 cm (C) 1.0 cm (D) water will not rise at all

Tardigrade Admin · Accepted Answer

Since water rises to height of 2 cm in a capillary <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/9d714647a3ec39838ffdc427e2bb9873-.png" /> If tube is at 60°, in this case height must be equal to h=2 cm ⇒ cos 60°=(h/l) ∴ l=(h/ cos 60°)=(2/1 / 2)=4 cm

Q. Water rises to a height of $2 c m$ in a capillary tube. If the tube is tilted $6 0^{\circ}$ from the vertical, water will rise in the tube to a length of

4.0 cm

2.0 cm

1.0 cm

water will not rise at all

Since water rises to height of $2 c m$ in a capillary

If tube is at $6 0^{\circ}$ , in this case height must be equal to
$h = 2 c m \Rightarrow cos 6 0^{\circ} = \frac{h}{l}$
$∴ l = \frac{h}{c o s 6 0 ^{\circ}} = \frac{2}{1/2} = 4 c m$

Q. Water rises to a height of 2cm in a capillary tube. If the tube is tilted 60∘ from the vertical, water will rise in the tube to a length of