Apparatus to measure acoustic waves’ velocity in air
Product Code : SCL-ES-12786
Quick Answer: The Apparatus to Measure Acoustic Waves’ Velocity in Air finds the speed of sound from a known frequency and a measured wavelength, using velocity = frequency × wavelength. The wavelength is taken from the distance between resonance positions or nodes.
Last updated: October 2026
Key Features
Measures the velocity of longitudinal sound waves in air
A known frequency is set from a signal generator or tuning source
Wavelength is found from the spacing of resonance positions or nodes
Velocity is calculated as frequency × wavelength
Readings can be repeated at different frequencies and compared
Technical Specifications
Specification
Value
Application
Measurement of acoustic wave velocity in air
Wave type
Longitudinal sound waves in air
Concepts covered
Sound waves, wavelength, frequency, resonance, standing waves, velocity of sound
About This Product
Sound travels through air as a longitudinal wave, and this apparatus turns that idea into a measurement. Students fix a frequency, locate the points of maximum sound or resonance, measure their spacing and calculate the speed, then repeat at other frequencies and compare the results. Educational Instrument can arrange export supply of the Apparatus to measure acoustic waves’ velocity in air to Malta, Malawi, Kazakhstan, Moldova and Liberia.
Frequently Asked Questions
How is the velocity of sound calculated with this apparatus?
Set a known frequency, measure the wavelength from the distance between resonance positions or nodes, then multiply: velocity = frequency × wavelength.
