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clc//
//
//
//Variable declaration
V=475; //volume(m^3)
aw=200; //area of wall(m^2)
ac=100; //area of ceiling(m^2)
ac_w=0.025; //absorption coefficient of wall
ac_c=0.02; //absorption coefficient of ceiling
ac_f=0.55; //absorption coefficient of floor
//Calculation
sigma_as=(aw*ac_w)+(ac*ac_c)+(ac*ac_f);
T=0.165*V/sigma_as; //reverberation time of hall(s)
//Result
printf("\n reverberation time of hall is %0.3f s",T)
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