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    Question

    What is the term for the continued presence of sound in a

    hall caused by repeated wall reflections?
    A Echo Correct Answer Incorrect Answer
    B Reverberation Correct Answer Incorrect Answer
    C Vibration Correct Answer Incorrect Answer
    D Absorption Correct Answer Incorrect Answer

    Solution

    When sound is produced in a large hall, it can persist due to multiple reflections off the walls, ceiling, and floor. This lingering effect is called reverberation. To minimize it, surfaces are often treated with sound-absorbing materials like drapes, rough plaster, or fiberboard.

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