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General
Easy

Question

A capillary of the shape as shown is dipped in a liquid. Contact angle between the liquid and the capillary is 0° and effect to liquid inside the meniscus is to be neglected. T is surface tension of the liquid, r is radius of the meniscus, g is acceleration due to gravity and r is density of the liquid then height h in equilibrium is:

  1. Greater than fraction numerator 2 T over denominator r rho g end fraction    
  2. Equal to fraction numerator 2 T over denominator r rho g end fraction    
  3. Less than fraction numerator 2 T over denominator r rho g end fraction    
  4. Of any value depending upon actual value    

The correct answer is: Less than fraction numerator 2 T over denominator r rho g end fraction

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