Question

why are ceilings of concert halls are curved?? explain

Answer 1

Ceilings of concert halls are curved so that the sound after reflection reaches every corner of the concert hall and the audience can listen the sound clearly. The ceilings of concert halls are curved so that the sound after reflection from the ceiling reaches all the corners of the hall.

Answer 2

the ceiling of concert hall are curved as to prevent eco or reverberation as if sound will eco one will not be able to hear it
hence instead of flat curved walls are used in concert hall.