Answers

2016-03-16T17:04:58+05:30
Generally the ceilings of concert halls,conference halls and cinema halls are curved so that sound after reflection reaches all corners of the hall.sometimes a curved soundboard may be placed behind the stage so that the sound board,spreads evenly across the width of the hall.
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2016-03-16T19:01:18+05:30
They are curved so that sound aftr reflection reaches all corners
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