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Is Matter Around Us Pure

Question
CBSEENSC9006501

What is reverberation? How can it be reduced?

Solution

The repeated reflection that results in this persistence of sound is called reverberation. A sound created in a big hall will persist by repeated reflection from the walls until it is reduced to a value where it is no longer audible.

Reverberation can be reduced by following methods:

(i) By covering the walls and roof of the halls with sound absorbing materials.

(ii) By providing heavy curtains with folds, so that reflection of the sound is avoided.