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Which of the following types of absorbents can absorb the sound of any frequency?(a) Resonant panels(b) Cavity resonators(c) Porous materials(d) Composite typesThis question was addressed to me during an online interview.The origin of the question is Acoustics topic in division Acoustics and Ventilation of Construction & Building Materials |
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Answer» Right choice is (B) CAVITY RESONATORS |
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