Quick Answer: The Resonance Apparatus is a physics apparatus for sound resonance experiments, in which students find the air-column length that gives the loudest response and use it to study wavelength and the speed of sound.
Last updated: October 2026
Key Features
Demonstrates resonance in an air column with a suitable sound source.
Covers standing waves, nodes, antinodes and resonance length.
Used to determine the speed of sound from resonance positions.
Relates frequency, wavelength and wave velocity.
Works with tuning forks or suitable sound sources where included or available separately.
About This Product
Sound is produced near the mouth of the resonance tube without touching it, and the air-column length is adjusted slowly until the sound is loudest. That resonance length is read from the scale and the reading repeated. Resonance occurs when the air-column length supports standing-wave formation at the applied frequency, so students can link sound-wave theory with measured values.
Frequently Asked Questions
Q1. How is the resonance position found? Produce sound near the mouth of the tube and slowly adjust the air-column length. The position where the sound becomes loudest gives the resonance length, which is read from the scale.
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