Two In-Phase Loudspeakers That Emit Sound with the Same Frequency

question 202

Multiple Choice

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) 422 Hz
• C) 674 Hz
• D) 256 Hz
• E) 512 Hz

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Definitions:

DNA Replicates

The process by which a cell copies its DNA prior to cell division, ensuring that each new cell receives a complete set of genetic information.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA, which carries genetic information.

DNA

A molecule known as deoxyribonucleic acid, it is crucial for conveying genetic guidelines necessary for the growth, maturation, function, and reproduction of every known living organism and a wide array of viruses.

Nucleus

An organelle found in eukaryotic cells that contains most of the cell's genetic material.