Which of the following expressions gives the frequency of the harmonic produced by an…

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

Which of the following expressions gives the frequency

f_n

of the

n^{\text{th}}

harmonic produced by an organ pipe open at both ends, where

v

is the speed of sound and

L

is the length of the pipe? (a)

f_n = \dfrac{(2n-1) v}{4L}

(b)

f_n = \dfrac{n v}{4L}

(c)

f_n = \dfrac{n v}{2L}

(d)

f_n = \dfrac{v}{2Ln}