Question

4. How can you prove experimentally that the pitch of a string instrument depends on the length of the vibrating string?​

Answer 1

Answer:

A vibration in a string is a wave. Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch. If the length or 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, and pianos.