An Air Column Is Being Designed So That Its Second

question 16

Multiple Choice

An air column is being designed so that its second lowest resonant frequency is 440 Hz. The column is open at one end and closed at the other. What length should the column be if the speed of sound in air is 340 m/s?

• A)0.386 m
• B)0.772 m
• C)1.16 m
• D)0.193 m
• E)0.580 m