1.

A P-type semiconductor has acceptor levels 57 meV above the valence band. The maximum wavelength of light required to create a hole is (Planck?s constant h = \[6.6\times {{10}^{-34}}\]J-s)                                         [MP PET 1995]

A. \[57\,{AA}\]
B. \[57\times {{10}^{-3}}\,{AA}\]
C. \[217100\,{AA}\]
D. \[11.61\times {{10}^{-33}}\,{AA}\]
Answer» D. \[11.61\times {{10}^{-33}}\,{AA}\]


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