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The roofs and walls of the auditiorium a...

The roofs and walls of the auditiorium are generally covered with sound absorbent materiais to reduce

A

Velocity of sound

B

Revevberation of sound

C

Frequency of sound

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Persistence of sound in a closed encloure, due to continuous reflections at the walls is known as reverbertion. In an auditorium or big hall excessive reverberation is highly undesirable, so the roof and walls are generally covered with sound absorbent material.
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