Interference: Two In-Phase Loudspeakers That Emit Sound with the Same

question 17

Multiple Choice

Interference: Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 5.00 m. A person is standing 12.0 m away from the wall, equidistant from the loudspeakers. When the person moves 1.00 m parallel to the wall, she experiences destructive interference for the first time. What is the frequency of the sound? The speed of sound in air is 343 m/s.

• A) 211 Hz
• B) 256 Hz
• C) 422 Hz
• D) 512 Hz
• E) 674 Hz

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Definitions:

Complexity Science

An interdisciplinary field that studies the properties of systems that have multiple interconnected elements, focusing on how overall behavior emerges from individual components.

Knowledge Application

The practice of using acquired understanding and information to solve problems, make decisions, or create new concepts.

Phenomena

Observable events or occurrences that can be scientifically described or explained.

Interactionist Theories

Perspectives in sociology that focus on the importance of human interaction, personal agency, and the social construction of reality.