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JEE Main & Advanced Physics Wave Mechanics Question Bank Vibration of String

  • question_answer
    The first overtone of a stretched wire of given length is 320 Hz. The first harmonic is :                     [DPMT 2004]

    A)            320 Hz                                     

    B)            160 Hz

    C)            480 Hz                                     

    D)            640 Hz

    Correct Answer: B

    Solution :

                 Frequency of first overtone or second harmonic (n2) \[=320\,Hz\]. So, frequency of first harmonic \[{{n}_{1}}=\frac{{{n}_{2}}}{2}=\frac{320}{2}=160Hz\]


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