Two musical instruments consisting of tubes open at both ends are supposed have the same fundamental frequency of 440 Hz. Tube A has been carefully designed to produce a fundamental at exactly 440 Hz. Tube B produces a fundamental at a slightly lower frequency. When both tubes are played at the same time, a beat frequency at 5 Hz is detected. By what length must tube B be shortened so that it produces exactly 440 Hz? You can take the speed of sound in air to be 340 m/s. O 22 mm OR m O 44 mm O 15 mm O 29 mm
Two musical instruments consisting of tubes open at both ends are supposed have the same fundamental frequency of 440 Hz. Tube A has been carefully designed to produce a fundamental at exactly 440 Hz. Tube B produces a fundamental at a slightly lower frequency. When both tubes are played at the same time, a beat frequency at 5 Hz is detected. By what length must tube B be shortened so that it produces exactly 440 Hz? You can take the speed of sound in air to be 340 m/s. O 22 mm OR m O 44 mm O 15 mm O 29 mm
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