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

---

Definitions:

Legitimate Power

Power that is based on respect for a person’s position.

Conflict Management Style

The approaches and methods an individual uses to handle disagreements, disputes, or differences in a constructive or destructive manner.

Accommodation

Adjusting one's behavior or responses to suit another person's needs or preferences, often to maintain harmony in relationships.

Compromise

Conflict management style that attempts to find the middle ground in a conflict.