Physics, asked by justchintus6287, 1 year ago

Sensitivity enhancement of turn-around-point long period gratings by tuning initial coupling condition

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Answered by Rohit65k0935Me
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The valency of an element is the number of hydrogen atoms that can combine with or replace (either directly or indirectly) one atom of the element. ... For example, oxygen has six valence electrons, but its valency is 2. Some elements may have more than one combining power (or valency), while others have just one.

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