Question:
In a closed hall of volume 5000 m³, the total absorption of the interior surfaces is 200 metric sabin. The reverberation time is:
In a closed hall of volume 5000 m³, the total absorption of the interior surfaces is 200 metric sabin. The reverberation time is:
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Sabine's Formula is the gold standard for calculating how long sound "lingers" in a room.
Updated On: Jun 9, 2026
- 1 s
- 2 s
- 3 s
- 4 s
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Apply Sabine's empirical formula: $T = \frac{0.16V}{A}$.
Step 2: Meaning
Given $V = 5000$ m³ and $A = 200$ metric sabins.
Step 3: Analysis
$T = \frac{0.16 \times 5000}{200} = \frac{16 \times 50}{200} = \frac{800}{200}$.
Step 4: Conclusion
$T = 4$ seconds.
Final Answer: (D)
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