A speaker generates a continuous tone of 440 Hz. In the drawing, sound travels into a tube that splits into two segments, one longer than the other. The sound waves recombine before being detected by a microphone. The speed of sound in air is 339 m/s. What is the minimum difference in the lengths of the two paths for sound travel if the waves arrive exactly out of phase at the microphone?
A)0.10 m
B)0.39 m
C)0.77 m
D)1.11 m
E)1.54 m

Question

A speaker generates a continuous tone of 440 Hz. In the drawing, sound travels into a tube that splits into two segments, one longer than the other. The sound waves recombine before being detected by a microphone. The speed of sound in air is 339 m/s. What is the minimum difference in the lengths of the two paths for sound travel if the waves arrive exactly out of phase at the microphone? 
A)0.10 m 
B)0.39 m 
C)0.77 m 
D)1.11 m 
E)1.54 m

Quizplus · Accepted Answer

The Answer of A speaker generates a continuous tone of 440 Hz. In the drawing, sound travels into a tube that splits into two segments, one longer than the other. The sound waves recombine before being detected by a microphone. The speed of sound in air is 339 m/s. What is the minimum difference in the lengths of the two paths for sound travel if the waves arrive exactly out of phase at the microphone? 
A)0.10 m 
B)0.39 m 
C)0.77 m 
D)1.11 m 
E)1.54 m

A Speaker Generates a Continuous Tone of 440 Hz