The energy gap between the valence and conduction bands in a certain semiconductor is .What is the threshold wavelength for optical absorption in this substance? ,1 eV = 1.60 × 10^-19 J,h = 6.626 × 10^-34 J • s) A) 599 nm B) 639 nm C) 959 nm D) 873 nm E) 994 nm

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The Answer of The energy gap between the valence and conduction bands in a certain semiconductor is .What is the threshold wavelength for optical absorption in this substance? ,1 eV = 1.60 × 10^-19 J,h = 6.626 × 10^-34 J • s) A) 599 nm B) 639 nm C) 959 nm D) 873 nm E) 994 nm

The Energy Gap Between the Valence and Conduction Bands in a Certain