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

question 49

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 nonzero distance from the wall the person can stand and hear constructive interference? The speed of sound in air is 343 m/s.

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

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Definitions:

Yield To Maturity

The total return anticipated on a bond if it is held until its maturity date, factoring in its current market price, face value, interest rates, and time to maturity.

Par Value

The nominal or face value of a bond, share of stock, or coupon as indicated on a bond or stock certificate.

Semi-Annually

Semi-annually refers to an event or action occurring twice a year, typically every six months.

Real Rate Of Return

The yearly return percentage on an investment, modified for price level changes caused by inflation or other external factors.