Question

The G string on a guitar is 69 cm long and has a fundamental frequency of 196 Hz. A guitarist can play different notes by pushing the string against various frets, which changes the string's length. The third fret from the neck gives B♭ (233.08 Hz); the fourth fret gives B (246.94 Hz).

How far apart are the third and fourth frets?

Express your answer to two significant figures and include the appropriate units.

Answer 1