the time of the reverberation n of a room a is one second Share with your friends Share 0 Rohit Babu answered this Dear Student,Sabine's formula for reverberation time T is,T=0.16VaSwhere,V→Volume of the room in m3a→Average absorption coefficientS→Total surface area of the roomSo we can wrire,T α VS.............1Let V be the original volume of the room.⇒V=l×b×hLet V1 be the volume after the dimensions of the room are doubled.V1=2l×2b×2h=8×l×b×h=8VLet S be the initial surface area,S=l×bLet S1 be the srface area of the new roomS1=2l×2b=4×l×b=4SLet T1 be the new reverberation time.(Given, T=1s)Using equation 1,T1T=V1S1×SV=8V4S×SV=2⇒T1=2T=2×1= 2s, option ARegards.. 0 View Full Answer