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A p-n photodiode is made of a material w...

A `p-n` photodiode is made of a material with a band gap of `2.0 eV`. The minimum frequency of the radiation that can be absorbed by the material is nearly

Text Solution

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Use energy E = hf
`therefore` `f = E/h =( 2xx1.6xx10^(-19)J)/ (6.6 xx10^(-34) J-s)` = `5 xx 10^(14)Hz`
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