A string of length is fixed at both ends and is stretched with a tension of

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

Problem

A string of length

1.0\,\text{m}

is fixed at both ends and is stretched with a tension of

100\,\text{N}

. Its linear mass density is

0.010\,\text{kg\,m}^{-1}

. Calculate the frequency of its third harmonic. (a)

300\,\text{Hz}

(b)

100\,\text{Hz}

(c)

150\,\text{Hz}

(d)

75\,\text{Hz}