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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Defects in Crystal

  • question_answer
    Certain crystals produce electric signals on application of pressure. This phenomenon is called    [BHU 2005]

    A)                 Pyroelectricity  

    B)                 Ferroelectricity

    C)                 Peizoelectricity

    D)                 Ferrielectricity

    Correct Answer: C

    Solution :

                    When polar crystal is subjected to a mechanical stress, electricity is produced ? a case of piezoelectricity. Reversely, if electric field is applied, mechanical stress is developed. Piezoelectric crystal acts as a mechanical electrical transductor.


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