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Q.

The purpose of using absorbent material in the inside ceiling of the auditorium is_

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An Intiative by Sri Chaitanya

a

To creates the echo of the sound

b

To reflect the sound in every corner of the auditorium

c

For aesthetic purpose

d

To decrease the reverberation time

answer is D.

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Detailed Solution

The purpose of using absorbent material in the inside ceiling of the auditorium is to decrease the reverberation time.
Reverberation time is the period from the moment when a sound wave propagates from its source to the moment its loudness becomes zero. Reverberation is the process of persistence of sound waves. Reverberation creates the mixing of the different sounds produced in the auditorium. Hence it should be a minimum. It is done by using sound-absorbing materials.

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