Answer to Question #184975 in Civil and Environmental Engineering for John Prats

Question

A standing wave is set up in string 120 cm long. The string vibrates in four segments under a frequency of 120 Hz. Calculate the wavelength and the fundamental frequency of the string.

Answer 1

Length of string(l)=120cm=1.20m

String vibrate in four segment. Mean numbers of loop is n=4

Wavelength

$\lambda n=2l/n$

=2*1.20/4=0.60m

Fundamental frequency=120/4=30Hz