AMU Medical AMU Solved Paper-2011

  • question_answer
    The Piezo-electric effect is used in

    A)  NMR                                    

    B)  PET

    C)  sonography                      

    D)  All of these

    Correct Answer: C

    Solution :

     In sonography when electric potential is applied to the crystals of lead zirconate they get excited and start vibrating which are responsible for production of ultrasound


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