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  1. Speed of

    2. A.

     Sound at 0°C is 1190 kmph
    B.

     Sound varies 2.4 kmph per degree centigrade rise in temperature
    C.

     Sound at 0°C is called one Mach
    D.

     All the above

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    Workspace

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    Answer : Option D

    Explanation :

    Explanation Not Provided

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