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21/09/2020 5:21 pm
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The crystal of lead zirconate is a key component of
(a) electroencephalography
(b) electrocardiography
(c) magnetoencephalography
(d) sonography
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21/09/2020 5:22 pm
(d) sonography
Explanation:
Lead zirconate is a key component of sonography. These crystals are housed in a transducer which gets excited and starts vibrating when an electric potential is applied to it. These vibrations are the source of ultrasound.