When a train is approaching from a fair distance, we hear multiple sounds i.e on through track and another through the air.

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Solution

The correct option is A 1
We know that sound travels fastest in solids and slowest in gases. So, if we put our ears on a railway track where a train is approaching from a fair distance, we hear two sounds - first one is transmitted in the tracks (solid medium) and the other is transmitted through the air (gaseous medium) which is the second sound.

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Similar questions

If we put our ears on a railway track where a train is approaching from a fair distance, we hear multiple sounds.

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?

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?

(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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