Sound with froquency 1270 Hz loaves a room through a doorway with a width of 1.15 m. At what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? Use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for Fraunhofer diffraction to apply. You can ignore effects of reflections.

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Chapter1: Units, Trigonometry. And Vectors
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Part A
Sound with frequency 1270 Hz leaves a room through a doorway with a width of 1.15 m . At what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? Use 344 m/s for the speed of sound in air and assume
that the source and listener are both far enough from the doorway for Fraunhofer diffraction to apply. You can ignore effects of reflections.
Express your answer in radians.
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V ΑΣΦ
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Transcribed Image Text:Part A Sound with frequency 1270 Hz leaves a room through a doorway with a width of 1.15 m . At what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? Use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for Fraunhofer diffraction to apply. You can ignore effects of reflections. Express your answer in radians. • View Available Hint(s) V ΑΣΦ ? radians Submit
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