A sound wave has a frequency `1000 Hz` and wavelength `34 cm`. How long will it take to move through `1 km` ?

Explanation

Here, frequency of the wave, `v = 1000 Hz`
wavelength of the wave, `lamda = 34 cm = 0.34 m`
Speed of sound wave, `v = v lamda = 1000 xx 0.34 = 340 m//s`
Time taken by the wave to move through `1 km(i.e., 1000 m)`,i.e.,
`t = "distance"//"speed" = (1000 m)/(340 m//s) = 2.94 s`.