a police siren emits a sinusoidal wave with frequency f=300hz.the speed of sound is 340ms. find the wave lenght of the waves if the siren is at rest in the air
v=frequency*lamda
To find the wavelength of the sinusoidal wave emitted by the police siren, we can use the formula:
wavelength = speed of sound / frequency
Given that the frequency (f) is 300 Hz and the speed of sound (v) is 340 m/s, we can substitute these values into the formula:
wavelength = 340 m/s / 300 Hz
Now, let's calculate the wavelength:
wavelength = 1.13 meters
Therefore, the wavelength of the waves emitted by the police siren when it is at rest in the air is 1.13 meters.