An Observer Stands 3 M from Speaker a and 4 $\frac{\pi}{2}$

question 44

Multiple Choice

An observer stands 3 m from speaker A and 4 m from speaker B. Both speakers, oscillating in phase, produce 170 Hz waves. The speed of sound in air is 340 m/s. What is the phase difference (in radians) between the waves from A and B at the observer's location, point P?

• A)0
• B)\(\frac{\pi}{2}\)
• C)( \(\pi\))
• D)2 \(\pi\)
• E)4 \(\pi\)

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