Question

Determine the frequencies of the fundamental mode and the next two harmonics

that can be set up on a sitar string of length 1.0 m. Take the speed of waves of the

string to be 2.8 *10³ms^-1.

Answer 1

$f_1=\frac {v}{2L}=1.4~kHz,$

$f_2=2\cdot \frac{v}{2L}=2f_1=2.8~kHz,$

$f_3=3\cdot \frac{v}{2L}=3f_1=4.2~kHz.$