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The energy gap of silicon is 1.14 eV. Th...

The energy gap of silicon is `1.14 eV`. The maximum wavelength at which silicon will begin absorbing energy is

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`(hc)/(lambda)=E`
`:. lambda = (hc)/E=(6.628xx10^(-34)(J-s)xx3xx10^(8) (m/s))/(1.14xx1.6xx10^(-19)J)`
`=10.888xx10^(-7) m`
=10888Å
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