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प्रश्न
A boy on a hill A fires a gun. The other boy on hill B hears the sound after 4 s. If the speed of sound is 330 m s-1, find the distance between the two hills.
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उत्तर
Speed, v = 330 m s-1
t = 4s
Distances = v × t
= 330 × 4s
= 1320 m
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