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Lowest Resonance Frequency - Vibrations and Waves - Past Exam, Exams of Physics

Dr. Bhim Rao Ambedkar University Physics

This is the Past Exam of Vibrations and Waves which includes Transmitted Waves, Segments of String, Uniform Tension, Mass Per Unit Length, Transverse Traveling, Amplitudes of Reflected Waves, Frequency and Wavelength, Fraction of Energy etc. Key important points are: Lowest Resonance Frequency, Inner Dimensions, Speed of Sound, Two Opposite Panels, Direction of Longest Dimension, Mass of String, Vertical Component of Tension, Frequency Normal Mode

Typology: Exams

2012/2013

Uploaded on 02/26/2013

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Download Lowest Resonance Frequency - Vibrations and Waves - Past Exam and more Exams Physics in PDF only on Docsity! November 16, 2004 – mini-Quiz #9 – 8.03 Your name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mark your recitation: R01 – R02 – R03 – R04 – R05 A box made of thick wood is closed on all sides. Its inner dimensions are 10x20x50 cm3 . (5 points) What is approximately the lowest resonance frequency in Hz for sound in the box? You DO NOT have to derive this. It is suffi - cient to give the answer. If we assume that the speed of sound is 344 m/sec, the lowest res - onance frequency is 344 Hz (0,0,1 mode; see your lecture notes of Tuesday 11/9). (5 points) We now remove two opposite panels so that the box is open on both sides in the direction of its longest dimension (the 50 cm). What now is approximately the lowest resonance frequency in Hz for sound in the box? You DO NOT have to derive this. It is sufficient to give the answer. If we assume that the speed of sound is 344 m/sec, the lowest reso - nance frequency is again 344 Hz. 1

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Lowest Resonance Frequency - Vibrations and Waves - Past Exam, Exams of Physics

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