3.0. Tubo de Kundt EN

Kundt's tube

Use

The Kundt’s tube is used to study the stationary waves.

Description

In its original form, it consists of a tube made of glass blocked at both ends, one of them by a fixed cap and the other by a movable piston. This let us modify the length of the pipe, which contains, uniformly, some light materials such as lycopodium powder or crushed cork.

Functioning

When the metal bar is hit, it produces a vibration which is spread through the air molecules that are contained in the tube. The result is a sound wave which is reflected in the contrary end of the tube. The interference between the direct wave and the reflected wave generates a set of standing waves that is made visible by the distribution of the light particles, since these begin to move and accumulate in the points where the waves interfere in a constructive way.

History

The experiences with this instrument, which were carried out for the first time in 1866, were the main contribution of the German physicist August Kundt to the acoustic field.

Descripción general de privacidad

Este sitio web utiliza cookies para que podamos brindarle la mejor experiencia de usuario posible. La información de las cookies se almacena en su navegador y realiza funciones como reconocerlo cuando regresa a nuestro sitio web y ayudar a nuestro equipo a comprender qué secciones del sitio web le resultan más interesantes y útiles.