JAMB Physics 2007 Objective — Question 7
Question 7 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2007 Objective paper, with the correct answer and a full explanation.
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In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to
- A. reduce the reverberation of sound in the hallCorrect
- B. reduce the height of the ceiling from the floor
- C. increase the reverberation of sound in the hall
- D. increase the amount of echo in the hall
Explanation
Perforated absorbent materials absorb sound energy, reducing unwanted reverberation in the hall.
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