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29/01/2022 7:23 pm
Topic starter
The material generally used for soundproofing of rooms like a recording studio and auditorium, etc. is
(a) Cotton
(b) Coir
(c) Wood
(d) Styrofoam
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29/01/2022 7:24 pm
Correct answer: (d) Styrofoam
Explanation:
Styrofoam is a kind of expanded polystyrene used especially for making food containers used for sound proofing of rooms like a recording studio and auditorium, etc.