The Sound Intensity in Front of a Loudspeaker Diaphragm Vibrating

question 40

Multiple Choice

The sound intensity in front of a loudspeaker diaphragm vibrating at 2 kHz is 4.3 W/m²,with an acoustic power output of 0.3 W.Calculate the diameter of the diaphragm.

• A)3 cm
• B)9 cm
• C)15 cm
• D)30 cm
• E)60 cm