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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2011

  • question_answer
        A string fixed at both ends whose fundamental frequency is 240 Hz is vibrated with the help of tuning fork having frequency 480 Hz, then

    A)  string will vibrate with a frequency of 240 Hz      

    B)  string will vibrate in resonance with the tuning fork

    C)  string will vibrate with a frequency of 480 Hz, but is not in resonance with the tuning fork

    D)  string is in resonance with tuning fork, and hence vibrates with a frequency of 240 Hz

    Correct Answer: B

    Solution :

                    If one of the natural frequencies of the string matches with the source frequency then resonance condition will arise and string will vibrate with the source frequency.


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