Two Loudspeakers Are Placed Next to Each Other and Driven

question 66

Multiple Choice

Two loudspeakers are placed next to each other and driven by the same source at 460 Hz.A listener is positioned in front of the two speakers and on the line separating them,thus creating a constructive interference at the listener's ear.What minimum distance would one of the speakers be moved back away from the listener to produce destructive interference at the listener's ear? (The speed of sound = 340 m/s. )

• A) 1.35 m
• B) 0.74 m
• C) 0.37 m
• D) 0.18 m
• E) ​2.71 m

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Definitions:

Fallacy

An erroneous argument or reasoning, often resulting from incorrect premises or invalid logic.

Valid Argument

An argument whose structure ensures its conclusion follows logically from its premises, without contradiction.

Counterexample

An example that opposes or contradicts an argument or theory, often used to disprove general statements.

Valid Argument

A logical statement where, if the premises are true, the conclusion must necessarily follow, demonstrating sound reasoning and structure.