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

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

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`hc/lambda = E`
`therefore` `lambda = hc/E = (6.628 xx 10^(-34)(J-s)xx 3 xx 10^(8)(m/s))/ (1.14 xx1.6xx10^(-9) J)`
= `10.901 xx 10^(-7) m`
` = 10901 A`
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