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Sound of Frequency 600 Hz Is Emitted by a Point

Question 73

Multiple Choice

Sound of frequency 600 Hz is emitted by a point source. The sound can travel along two different paths to reach an observer. What is the minimum non-zero path length difference that results in constructive interference? Assume the speed of sound in air is 340 m/s.


A) 28.3 cm
B) 1.13 m
C) 1.76 m
D) 88.2 cm
E) 56.7 cm

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