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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-2

  • question_answer
    The ratio of the wavelengths of first harmonic: second harmonic: third harmonic in a stretched string is

    A)  1 : 2 : 3           

    B)  6 : 3 : 2

    C)  2 : 3 : 6           

    D)  3 : 2 : 1

    Correct Answer: A

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