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Q.

Why conference halls or concert halls ceiling are made curved?


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a

Due to refraction of sound

b

Due to reflection of sound

c

Due to disturbance of sound

d

Due to noise of sound 

answer is B.

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Detailed Solution

This is because the ceiling of conference halls and concert halls are made curved due to reflection of sound. Therefore the sound after reflection reaches all corners of the hall so that it can be heard clearly. Hence, when the ceiling is curved or concave then reflected sound waves can travel far distance.
 
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