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Rock wool comes under which of the following classifications of absorbents?(a) Porous materials(b) Resonant panels(c) Cavity resonators(d) Composite typesThe question was posed to me in an online quiz.The query is from Acoustics topic in chapter Acoustics and Ventilation of Construction & Building Materials

Answer»

Correct option is (a) Porous materials

Easiest explanation: Absorbents are BROADLY classified as porous materials, resonant PANELS, cavity RESONATORS and COMPOSITE types. Rock wool is an example of porous material. Other EXAMPLES of porous materials are glass wool, wood wool, etc.



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