Question

What factors decide the frequency of vibration of a plucked string?

Answer 1

Resonance causes a vibrating string to produce a sound with constant frequency, i.e. Constant pitch.

If the length or the tension of the string is correctly adjusted, the sound produced is a musical tone.

Vibrating strings are the basis of string instruments such as guitars, cellos, violins and pianos etc.

Answer 2

The frequency of sound is changed as the length or tightness of the string is changed.