In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to
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Correct Answer: Option D
Explanation:
In a large auditorium perforated, absorbent materials are used to line the ceiling so as to reduce the effect of multiple reflection of echo called reverberation
In a large auditorium perforated, absorbent materials are used to line the ceiling so as to reduce the effect of multiple reflection of echo called reverberation