Two Identical Loudspeakers Are Driven in Phase by the Same

question 86

Multiple Choice

Two identical loudspeakers are driven in phase by the same amplifier.The speakers are positioned a distance of 3.2 m apart.A person stands 4.1 m away from one speaker and 4.8 m away from the other.Calculate the second lowest frequency that results in destructive interference at the point where the person is standing.Assume the speed of sound to be 340 m/s.

• A)245 Hz
• B)735 Hz
• C)1225 Hz
• D)490 Hz
• E)1470 Hz

Discover how social norms influence individual and group behaviors.

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Understand the concept of implicit and explicit cognition and how they influence perceptions and judgments.

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