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     EduGorilla 
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    When a train is at a distance of 2km, its engine sounds a whistle. A man near the railway track hears the whistle directly and by placing his ear against the track of the train. If the two sounds are heard at an interval of 5.2 s, find the speed of the sound in iron (material of the rail track). given that velocity of sound in air is 330 m s -1.

    Options :-

    1. 2,325.6 m s-1
    2. 1,932.4 m s-1
    3. 2,132.5 m s-1
    4. 3,213.2 m s-1
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