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Physical Chemistry

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1 Mar 2008 18:59:17 IST

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1) EXPLAIN THE THE PRODUCTION OF ELECTRICITY ON APPLICATION OF HIGH PRESSURE TO IT (PIEZOELECTRIC CRYSTAL)

2)EXPLAIN THE THE PATH DIFFERENCE IN DERIVING BRAGGS EQUATION

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Bipin Dubey

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1 Mar 2008 19:32:19 IST

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A piezoelectric crystal consists of multiple interlocking domains which have positive and negative charges. These domains are symmetrical within the crystal, causing the crystal as a whole to be electrically neutral. When stress is put on the crystal, the symmetry is slightly broken, generating voltage. In this way electricity is produced.

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dev_22oct

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2 Mar 2008 17:05:37 IST

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dev_22oct

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2 Mar 2008 17:07:14 IST

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AB+BC is equal to the sum of path differences...

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