Two speakers are placed side by side and driven by the same frequency of 0.50 kHz. If the distance from a person to one speaker is 5.0 m and the person detects little or no sound,
which of the following is a possible the distance from the person to the other speaker? The sound speed in the room is 340 m/s.
A) 7.7 m
B) 8.1 m
C) 8.4 m
D) 9.1 m
Question 2
What is the length of the shortest pipe closed on one end and open at the other end that will have a fundamental frequency of 0.060 kHz on a day when the speed of sound is 340 m/s?
A) 1.24 m
B) 1.42 m
C) 2.14 m
D) 4.12 m
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