Model No:SPH-S001
To determine frequency of a tuning fork with the help of a sonometer
The Sonometer Apparatus for Determining the Frequency of a Tuning Fork is a physics laboratory instrument designed to determine the frequency of a tuning fork using the principle of resonance in a stretched string. It is widely used in school and college physics laboratories to demonstrate the relationship between frequency, vibrating string length, tension, and linear density.
The apparatus generally consists of a hollow wooden resonance box, a stretched metal wire, movable bridges, a tension-adjusting pulley, and a weight hanger with slotted weights. When a vibrating tuning fork is placed near the sonometer wire, the vibrating length of the wire can be adjusted until resonance occurs. At resonance, the wire vibrates with a larger amplitude, indicating that its natural frequency matches the frequency of the tuning fork.
By measuring the resonant length of the wire and determining the tension applied to it, students can calculate the frequency of the tuning fork using the laws of vibrating strings. The experiment provides a practical understanding of sound waves, resonance, standing waves, and the relationship between the physical properties of a stretched string and its frequency.
This apparatus is suitable for physics practical examinations, acoustics experiments, sound-wave demonstrations, and laboratory teaching in schools, colleges, and universities.
Aim : Study or demonstrate the principle described by the experiment or apparatus name: To determine frequency of a tuning fork with the help of a sonometer.
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