CBSE Class 9 Answered
if we hear a louder sound we usually close our door as in solid sound travels more faster
so when we close door why we hear lesser sound
Asked by | 29 Dec, 2011, 12:00: AM
Expert Answer
Doors & windows block the entry of the air carrying sound waves from reaching our ears.And no door or window reaches your ear. They stand away from us and what ever amount of sound energy they absorb will not reach our ears.
Answered by | 29 Dec, 2011, 10:51: PM
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