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प्रश्न
Why are the ceilings of concert halls curved?
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उत्तर
Generally, the ceilings of concert halls, are curved so that sound after reflection reaches all corners of the hall. Sometimes a curved sound board may be placed behind the stage so that the sound, after reflecting from the soundboard, spreads evenly across the width of the hall.
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संबंधित प्रश्न
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(a) which of the diagram shows the principal note?
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