A sound source of constant frequency 1000Hz is placed at the mouth of a long tube. The wave travels through air inside the tube for 2.0s and then through water for the next 1.5s as the tube dips into a tank.
(a) Taking the speed of sound in air as 330ms−1 and in water as 1500ms−1, calculate the wavelength of the wave in air and in water.
(b) Find the total number of complete oscillations produced by the source during the entire 3.5s interval.
(c) Calculate the total distance travelled by the disturbance in the two media together.