The hero of a western movie listens for an oncoming train by putting his ear to the track. Why does this method give an earlier warning of the approach of a train than just listening in the usual way?

Because frequency of sound is more inside the iron tracks

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Sound travels faster in solids

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Because it looks cool

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None of these

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Solution

The correct option is B Sound travels faster in solids
Sound travels faster in solids than in gases - so listening at an iron tracks gives you earlier warning of train approaching!

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Similar questions

Q. A person, pressing his ear on the railway tracks can hear an approaching train. This is possible due to:

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?

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

(a) 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 ?

(b) How could you convince a small child that when you speak, it is not necessary for air to travel from your mouth to the ear of a listener ?

Q. The sound of train approaching could be heard earlier when we press our ears on rail tracks than just normally hearing it. What could be the possible reason for it?

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The hero of a western movie listens for an oncoming train by putting his ear to the track. Why does this method give an earlier warning of the approach of a train than just listening in the usual way?

The correct option is B Sound travels faster in solidsSound travels faster in solids than in gases - so listening at an iron tracks gives you earlier warning of train approaching!

The correct option is B Sound travels faster in solids
Sound travels faster in solids than in gases - so listening at an iron tracks gives you earlier warning of train approaching!