Physics

Problem

A guitar string

60\,\text{cm}

long and of linear mass density

2.5\times10^{-3}\,\text{kg m}^{-1}

is required to produce a note of frequency

600\,\text{Hz}

in its third harmonic. Determine the tension that must be applied to the string. a)

36\,\text{N}

576\,\text{N}

144\,\text{N}

81\,\text{N}