A pipe that is closed at one end has an air column of length

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

Problem

0.85\,\text{m}

. If the speed of sound in air is

340\,\text{m}\,\text{s}^{-1}

, what is the frequency of the third harmonic in the pipe? (a)

600\,\text{Hz}

(b)

300\,\text{Hz}

(c)

500\,\text{Hz}

(d)

150\,\text{Hz}