1 Oscillations
A cubical auditorium side 10 m has reverberation time 2 seconds when all windows are closed. If surface area of windows is 1/4th of total surface area of the hall, reverberation time of auditorium when windows are opened is
1) 1.65 s 2) 0.76 s 3) 1 s 4) 0.55 s
SOLUTION
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