(a)  Two loudspeakers A & B emit sound waves in phase.  The frequency of waves emitted by each speaker is 660 Hz.  A is located at the origin and B is located on the y axis at y= 3 m.  A person is standing at position P of coordinate ( 4 m, 3 m).  Determine the path difference of sound waves reaching the person.  What kind of interference occur at P?Speed of sound in air =330 m/s

In the figure, sound waves A and B, both of wavelength 12.0 m, are initially in phase and traveling rightward. They each reflect several times but end up traveling in their original direction. What is the second smallest value (m) of d that puts A and B exactly out of phase with each other after the reflections? A B d 2d |—a—

For testing purposes, a musical instrument manufacturing company creates a device so that when you blow into one end with your instrument, sound comes out the other end in opposite directions. A sound technician uses a whistle and generates sound waves with a frequency of 280 Hz. The waves travel in opposite directions in a sound studio, are reflected by end walls, and return. The studio is 43.0 m long and the whistle is located 14.0 m from one end. What is the phase difference (in degrees) between the reflected waves when they meet at the source of the sound? The speed of sound in air is 343 m/s. 17044.898X See if you can determine the path difference and the wavelength, and then express the path difference in terms of the wavelength. What part of the path difference is of interest to us when finding the phase difference? How is this part of the path difference related to the phase difference? • Need Help? Read It

For testing purposes, a musical instrument manufacturing company creates a device so that when you blow into one end with your instrument, sound comes out the other end in opposite directions. A sound technician uses a whistle and generates sound waves with a frequency of 200 Hz. The waves travel in opposite directions in a sound studio, are reflected by end walls, and return. The studio is 50.0 m long and the whistle is located 14.0 m from one end. What is the phase difference (in degrees) between the reflected waves when they meet at the source of the sound? The speed of sound in air is 343 m/s.