7/21/2019 exercise.ppt
1/4
1.
2.
7/21/2019 exercise.ppt
2/4
3.
7/21/2019 exercise.ppt
3/4
4.
5.
7/21/2019 exercise.ppt
4/4
6.
7. Two loudspeakers connected to the same signal generator are producing sound
of frequency 1000 Hz. The separation between the two loudspeakers is 2.0 m. n
obser!er who stands " m in front hears three consecuti!e loud sounds when he mo!es
through a distance at 1.#" m in the direction parallel to the speakers.$etermine%
&a' the wa!elength of the sound
&b' the speed of the sound wa!es in air.