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You are walking along a seashore and a m...

You are walking along a seashore and a mild wind is blowing. Is the motion of air a wave motion ?

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Knowledge Check

  • A train, standing in a station yard, blows a whistle of frequency 400Hz in still air. The wind starts blowing in the direction from the yard to the station with a speed of 10m//s. Given that the speed sound in still air is 340m//s ,

    A
    The frequency of sound as heard by an observer standing on the platform is 400 Hz.
    B
    The speed of sound for the observer standing on the platform is 330 `m s^(-1)`
    C
    The frequency of sound as heard by the observer standing on the platform will increase.
    D
    The frequency of sound as heard by the observer standing

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