Question

Consider the following statements A and B given below and identify the correct answers:

• 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

Answer 1

Answer: (D)

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.