(d) ef =1.99 ev and decreases wiu ticcast u o 10. the wavelength and the spectral region for a single electron transfer across the band gap in a semiconductor (

(d) Ef =1.99 ev and decreases wiu TICcasT u o 10. The wavelength and the spectral region for a single electron transfer across the band gap in a semiconductor (E, -1.98 x 10") are [h =6.626 x 10" Js, c = 3x 10 ms (b) 1000 nm, IR (d) 500 nm, FAIR IR n from I to K shell: an X-ray is emitted. TheseX-rays (c) 500 nm, visible (a) 1000 n, UV