A sound wave in a fluid medium is reflected at a barrier so that a standing wave is formed. The distance between nodes is 3.84 cm and the speed of propagation is 1520 m/s. Find the frequency.
The distance between nodes referred to in the problem means that that
λ/2=3.84cm, or
λ=0.077m. Therefore, the frequency is
f=v/λ=(1520m/s)/(0.077m)19740.25
Hz
λ/2=3.84cm, or
λ=0.077m. Therefore, the frequency is
f=v/λ=(1520m/s)/(0.077m)19740.25
Hz