If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track ?

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Solution

It is not matter of convenience.
If we put our ear on the track, as the sound waves travel through solid reach faster so we hear the sound of approaching train through rails made of steel where as the sound travelling through air do not reach the ears by that time.

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Similar questions

If you want to hear a train approaching from far away :

We can easily hear the sound of an approaching train by putting your ear on the track well before you could hear its sound in the air. Why?

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