in summer season , the speed of sound waves through air in one day is 346m. what would be the distance of an obstacle to hear echo ?
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speed = 346m/s
time = 0.1s( due to persistence of hearing )
distance = s*t
now
2d = s*t
2d = 346* 0.1
2d= 34.6m
d = 17.3 m
time = 0.1s( due to persistence of hearing )
distance = s*t
now
2d = s*t
2d = 346* 0.1
2d= 34.6m
d = 17.3 m
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