Question

the intensity of reverberations is higher in a closed and empty house.
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Answer 1

Answer:

The reverberation time is larger for an empty hall than for a crowded hall because there are many sound absorbers present in a crowded room, whereas the sound is reacted back by the walls of an empty room. Therefore it persists for a longer time in an empty hall

Answer 2

Answer:

The reverberation time is larger for an empty hall than for a crowded hall because there are many sound absorbers present in a crowded room, whereas the sound is reacted back by the walls of an empty room. Therefore it persists for a longer time in an empty hall.