Question

if the speed of sound is 34,500 cm/s and a note has a frequency of 256 hz, what is the wavelength in meters

Answer 1

Answer:

Wavelength of sound in meters = 1.348 m

Explanation:

Given

speed of sound = 34500 cm$s^{-1}$ = 345 m$s^{-1}$ (since 1 cm = 0.01m)

frequency of sound = 256 Hz = 256$s^{-1}$

Wavelength of sound in meters = ?

We know that all waves have same relationship among speed s, frequency f and wavelength λ, which is given by the equation

            v = fλ

Wavelength λ = v/f

                       = 345 m$s^{-1}$ / 256$s^{-1}$

                       =1.348 m

Hence wavelength of sound in meters = 1.348 m