| A: The reverberation time is dependent on the shape of the enclosure, position of the sources and observer. |
| B: The unit of absorption coefficient in MKS system is metric sabine. |
A) both A and B are true
B) both A and B are false
C) A is true but B is false
D) A is false but B is true
Correct Answer: D
Solution :
The phenomenon of persistance or prolongation of sound in the auditorium is called reverberation Sabines reverberation formula for time is \[T=\frac{CV}{AS}\]where, V is the volume of auditorium, A = absorption constant, S in the total surface area of enclosed surface and C is constant. Therefore, from the formula for reverberation time. If depends upon volume, surface area and average absorption coefficient. So, statement A is wrong and unit of absorption coefficient an MKS is Sabine Hence, statement B is true.
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