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The sound of explosion on the surface of a lake is heard by a boatman 100m away and by a diver 100 m below the point of explosion .Of the two persons who would hear the sound first? Give reason for your answer. |
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Answer» The sound of explosion on the surface of a lake is heard by a boatman 100m away and by a diver 100 m below the point of explosion .Of the two persons who would hear the sound first? Give reason for your answer. |
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