Question

The volume of an auditorium is 100m x 50m x 15m. The reverberation time in that auditorium is 2 s when the person who is giving a speech is at a distance of 5m from a wall. The reverberation time if the same person gives speech at a distance 10m from the wall is

• A. 1 s
• B. 2 s
• C. 0.5 s
• D. 4 s

Answer 1

The correct option is B 2 s

$R.T.=0.161\frac{V}{A}$

So, it is independent of distance between a person giving speech and the wall.

So, R.T. wall remain same. So, reverberation time is $2s$.