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Railways R.R.C. (Secundrabad) Solved Paper Held on 1-12-2013

  • question_answer
    The frequency of sound waves can be expressed

    A) Second             

    B) Cycle   

    C) Cycle per second

    D) Metre per second

    Correct Answer: C

    Solution :

    The frequency of sound waves is expressed cycle per second.                           


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