Two In-Phase Loudspeakers Are Placed Along a Wall and Are

question 135

Multiple Choice

Two in-phase loudspeakers are placed along a wall and are separated by a distance of 4.00 m.They emit sound with a frequency of 514 Hz.A person is standing away from the wall,in front of one of the loudspeakers.What is the closest distance from the wall the person can stand and hear no sound (destructive interference) ? The speed of sound in air is 343 m/s.

• A)0.34 m
• B)0.37 m
• C)0.73 m
• D)1.2 m
• E)1.6 m

---

Definitions:

Proximity to Market

The closeness of a business or production site to its buyers or consumers, which can reduce transportation costs and improve supply chain efficiency.

Intermittent Organizations

Organizations that deal with products of a lesser magnitude than do project organizations; their products are not necessarily unique but possess a significant number of differences.