# A person standing near a railway line hears two distinct sounds of a train between time interval 2s.how much is the distance of the train?Velocity of steel=16 times velocity of air{340 m/s}

2
by mimansh

2015-02-06T08:16:10+05:30
Distance is 725.33 metres.
2015-02-06T14:14:11+05:30

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If the person standing near a railway line hears two distinct sounds of a train, then the sounds are - one travelling through steel and the another travelling through air.

Let the distance of train be d from the person.
speed of sound in air = 340 m/s
speed of sound in steel = 340 × 16 = 5440 m/s

time taken by sound travelling through steel to reach the person =
time taken by sound travelling through air to reach the person =

given that

Distance of train is 725.33 m.

thanks mimansh!!
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