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1. |
Calculate the wavelength of radiation emitted by an LED made up of a semiconducting material with band gap energy 2.8eV. |
A. | 2.8 √Ö |
B. | 4.3308 √Ö |
C. | 5548.4 √Ö |
D. | 4430.8 √Ö |
Answer» E. | |