Question

A capillary tube when immersed vertically in a liquid records a rise of $3cm$. If the tube is immersed in the liquid at an angle of ${60}^o$ with the vertical, then length of the liquid column along the tube will be (in cm)

• A. $2$
  
• B. $3$
  
• C. $6$
  
• D. $9$
  

Answer 1

The correct option is C $6$

Since vertical capillary rise will be same hence

h = $lcos{60}^0$

$l=2h=2\times 3cm=6cm$.