Two Loudspeakers, a and B, Are Separated by a Distance

question 30

Multiple Choice

Two loudspeakers, A and B, are separated by a distance of 2.0 m. The speakers emit sound waves at a frequency of 680 Hz that are exactly out of phase. The speed of sound is 343 m/s. How far from speaker A along the +x axis will a point of constructive interference occur?

• A)0.25 m
• B)0.30 m
• C)0.46 m
• D)0.88 m
• E)0.98 m

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