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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