If we can only hear things when it compresses air and reaches our ear – InterviewSolution

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1.	If we can only hear things when it compresses air and reaches our ear .Then how can a man standing out side a closed room can hear a man's sound which is inside the room
Answer» If we can only hear things when it compresses air and reaches our ear .Then how can a man standing out side a closed room can hear a man's sound which is inside the room

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