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 $\pi$

Question

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 $\pi$

Quizplus · Accepted Answer

The Answer of 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 $\pi$

An Observer Stands 3 M from Speaker a and 4 π2\frac { \pi } { 2 }2π​

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