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

question 45

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 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

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Definitions:

Demand Curve

A graph showing the relationship between the price of a product and the quantity of the product demanded at those prices, generally sloping downwards from left to right.

Price Constraint

A limitation on the price-setting process, often due to factors such as market competition, production costs, or regulatory guidelines.

Break-even Point

The production level at which total revenues equal total expenses, indicating no profit or loss, crucial for understanding the financial feasibility of a product or business.

Supply Curve

A graphical representation showing the relationship between the price of a good and the amount of it that suppliers are willing to sell.