Question: Sound ( speed = 3 4 3 ms ) exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. A person is
Sound speed ms exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. A person is sitting at
an angle a off to the side of a diffraction horn that has a width D of m This individual does not hear a sound wave that has a frequency of Hz When she is sitting at an angle of a the frequency that she does not hear is different. What is this frequency
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