A boy is sitting in middle of a park of dimension 10m x 10m. On the right side of it there is a building adjoining the park & on the left side, there is a road adjoining the park. A sound is produced by a cracker on the road. Is it possible for the boy to hear the ECHO? Explain.  

Dear Student ,
No the echo won't be heard by the boy as the minimum distance required for an echo to be heard is 17.2 m .

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