Tuning Forks Set of 8

It comprises two aluminium tubes telescoping into each other, so that the column of air within the tubes may be altered from 30 cms to 53 cms, outer tube fits into a wooden base.

It consists of a tube 100cm long, 25mm dia mounted on a stand which is fitted with leveling screws. The lower end of the rubber tubing provided is connected to the 500ml glass reservoir which slides on a metal rod and can be raised or lowered for adjusting the length of column of air. It is used to measure the velocity of sound waves in air at room temperature by using a tuning fork.