Concepts Of Physics MCQ Edition [Volume 1]PhysicsSome Mechanical Properties of Matter
Which of the graphs below could represent the relationship between the capillary rise h and the radius r of the capillary?
Options
- Ad
- Bb
- Ca
- Dc
Correct answer
D. c
Step-by-step solution
The capillary rise h in a tube of radius r is given by Jurin's law: h = 2T g r where T is the surface tension, is the contact angle, is the density of the liquid, and g is the acceleration due to gravity. For a given liquid and capillary tube material, the terms T , , , and g are constant. Thus, the relationship between h and r is: h 1 r This indicates that h is inversely proportional to r , and the equation hr = constant represents a rectangular hyperbola. Looking at the given graphs, curve 'c' is a rectangular hy