In which diagnostic system, Piezoelectric effect and Reverse Piezoelectric effect are involved?

EEG

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CAT

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USG

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MRI

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Solution

The correct option is C USG
The ultrasonography uses the phenomenon of piezoelectric effect and the reverse piezoelectric effect. The transducers which are used in the ultrasound technique works on this phenomenon. The Piezoelectric effect refers to applying an electric field to a crystal. This causes the realignment of the internal dipole structure. This rearrangement results in the crystal to lengthen or contract or change the shape. The process converts electrical energy into kinetic or mechanical energy. The reverse of the piezoelectric effect converts kinetic or mechanical energy. This is caused due to crystal deformation.
Thus, the correct answer is option C.

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