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GaAs and GaP make solid solutions that have the same crystal structure as the parent materials, with As and P randomly distributed throughout the crystal. GaP_xAs_1-x exists for any value of x. If we assume that the bandgap varies linearly with composition between x = 0 and x= 1, estimate the bandgap for GaP_0.5As_0.5( GaAs and GaP the bandgap are 1.43 eV 2.26 eV respectively). What wavelength of light does this correspond to?

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