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A p-type semoconductor has acceptor leve...

A p-type semoconductor has acceptor levels `57meV `above the valence band. Find the maximum wavelength of light which can create a hole.

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`E=(hc)/(lamda)rArr lamda=(hc)/(E)=(6.62xx10^(-34)xx3xx10^(5))/(57xx10^(-3)xx1.6xx10^(-19))=217100 Å`
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