Multiple choice

The roofs and walls of the auditorium are generally covered with sound absorbent materials to reduce the

  1. velocity of sound

  2. reverberation of sound

  3. frequency of sound

  4. None of these

  5. _
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is the collection of reflected sounds from the surfaces, like in an auditorium.

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