Chapter 13, Problem 63A

To determine

To Discuss: Equilibrium tubes exhibit about the pressure exerted by a liquid.

Explanation of Solution

Introduction: 

A set of four glass tubes in the having different shapes are connected to show the liquid stand at the same level. They are connected to a single point.

A sequence of glass tubes which are arranged in such a way that the liquid can freely pass between them to achieve a single equilibrium position. The pressure in a column of liquid depends only on the vertical distance above the reference point of the glass tube and but the pressure has no relation with the shape or size of the glass tube, and the atmospheric pressure exerted above glass tubes is the same for all the glass tubes, so the vertical distance up to which liquid reaches will be the same for all the glass tubes. This demonstration illustrates Pascal’s law.

Conclusion: 

The demonstration illustrates the Pascal’s law.