A cinema theatre has a volume of 750m2. What should be the total absorption in the theatre if the reverberation time of 1.5seconds is to be maintained?

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1.	A cinema theatre has a volume of 750m2. What should be the total absorption in the theatre if the reverberation time of 1.5seconds is to be maintained?
A.	835 open window units
B.	1125 open window units
C.	500 open window units
D.	750 open window units
Answer» B. 1125 open window units

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