waves

Question: A man stands in front of a hillock and fires a gun. He hears an echo after 1.5 sec. The distance of the hillock from the man is (velocity of sound in air is 330 m/s)



1) 220 m
2) 247.5 m
3) 268.5 m
4) 292.5 m
Solution: Explanation: No Explanation
Basics of Mechanical Waves

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