Question

when we put our ear to a railway line we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air why ? ​

Answer 1

Answer:

However within a few weeks the watch started to malfunction. you got it repaired at the dealer's shop but the problem persisted. as you cherish the gift you don't want to discard it. Therefore, write a letter of complaint to the manufacturer, Atlas watch company, Trinity towers, Collins Avenue Mumbai - 400063.

Answer 2

Answer:

Because the track is made of metals and sounds travel faster in solids than air. Thus, we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air.

Explanation:

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