Which one of the following expressions gives the frequency of the harmonic of a…

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

Problem

Which one of the following expressions gives the frequency

f_n

of the

n^{\text{th}}

harmonic of a stretched string of length

L

if the wave speed along the string is

v

? (a)

f_n = \dfrac{n v}{L}

(b)

f_n = \dfrac{nv}{2L}

(c)

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

(d)

f_n = \dfrac{v}{nL}