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A node is a place on a standing wave where the amplitude is the smallest. When a guitar string is plucked the nodes part of the standing wave is found at the fixed ends of the string.
What is a node?
A node is a place on a standing wave where the amplitude is the smallest. The nodes at the ends of a vibrating guitar string, for example, are nodes.
The guitarist alters the effective length of the vibrating string and hence the note played by shifting the location of the terminal node through frets.
To learn more about the nodes refer to the link;
https://brainly.com/question/1373895