Two loud speakers that are IN PHASE are placed at either end of a gymnasium, bot

Question

Two loud speakers that are IN PHASE are placed at either end of a gymnasium, both pointing towards the center of the gym and equidistant from the center. The speakers emit a sound of frequency 400 Hz sound. An observer (listener) standing at the center of the gym experiences constructive interference. How far towards the left speaker must the observer walk to experience the third destructive interference? Assuming the observer moved at constant speed v_0 = 3 m/s, what are the frequencies heard by the observer from each of the speakers?

Explanation / Answer

for third destructive interference n=3, therefore,

2x= (3-1/2)

Hence x= 5/4 ,

= 343/400= 0.8575 m

x= 1.0718 m

B) v= 3 m/s

V= f

F= v/

F= 3/0.8575

F=3.498 Hz

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.