EC ENGR 170A
Devry University
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Examen
EC ENGR 170ASolutions_Manual_revised_20161119 question and answer
Devry University
EC ENGR 170A
Chapter 1 Basic Concepts of Optical Fields 1.1 Nature of Light 1.1.1 g 1239.8 eV nm 1239.8 eV 5.47 eV. 227 E λ = = = 1.1.2 g g 1.2398 eV μm 1.2398 μm 1.88 μm. E 0.66 λ = = = Light of a wavelength longer than g λ =1.88 μm is transmitted. 1.1.3 The wavelength of the 5-THz wave is 8 1 12 3 10 m s 60 μm 5 10 Hz c λ ν − × = = = × . Its photon energy is 1.2398 eV μm 1.2398 eV 20.66 meV 60 hν λ = = = . 1.1.4 The optical frequency for the 1.55 μm wavelength ...
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