A guitar string long and of linear mass density is required to produce a note of…

PHYSICS · Single correct · A Level · Physics · Waves · Waves

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}

(b)

576\,\text{N}

(c)

144\,\text{N}

(d)

81\,\text{N}