The given Poisson’s Ratio of Rubber Tube Apparatus is a practical physics laboratory instrument developed to study the elastic properties of rubber and determine its Poisson’s Ratio. It helps students understand how a rubber tube changes in length and diameter when subjected to stretching force.

The apparatus is built around a rubber tube of approximately 1 meter length, firmly mounted on a vertical stand with a rigid top bracket. The stand is provided with levelling screws for stable positioning during the experiment. A hook at the lower end of the rubber tube allows loads to be applied easily, while the pointer attachment and meter scale help measure the extension accurately.

Designed for simple operation and clear observation, this apparatus is suitable for elasticity experiments in schools, colleges, universities, and educational physics laboratories. Supplied without slotted weights.

 Experimental Objectives

To determine Poisson’s Ratio of rubber using a rubber tube.
To study the elastic behavior of rubber under applied load.
To measure the extension produced in a rubber tube due to stretching force.
To understand the relationship between longitudinal strain and lateral strain.