Quick Answer: The Sonometer Apparatus is a 3-wire sonometer for studying vibrating strings, showing how pitch and frequency depend on string length, tension and mass per unit length.
Last updated: October 2026
Key Features
3-wire pattern for comparative string experiments
Fixed bridges 720 mm apart
Wooden box with scales divided in millimetres
A 100N Newton meter can be fitted to one wire to apply and measure tension
Overall size 1290 mm × 130 mm × 110 mm
Technical Specifications
Specification
Value
Pattern
3-wire pattern
Bridge distance
720 mm between fixed bridges
Scale
Divided in millimetres
Newton meter
100N Newton meter can be fitted to one wire
Dimensions
1290 mm x 130 mm x 110 mm
About This Product
Students choose a wire, set its vibrating length by moving the bridge underneath, apply the required tension and pluck or bow the wire gently. Changing the length, the tension or the wire thickness and comparing the pitch lets them investigate frequency against each variable on the sonometer, including mass per unit length using wires of different diameter. Besides buyers across India, the Sonometer Apparatus can be exported to institutions in Sudan, Latvia, Lithuania, Japan, Kyrgyzstan and Malta.
Frequently Asked Questions
Q1. What can be investigated with the sonometer? How the frequency of a vibrating string changes with its length, its tension and its mass per unit length, the last by using wires of different diameter.
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