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Part A Which wavelength of light (in nanometers) is emitted if an electron moves from the conduction band to the valence band
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Answer #1

Given:

Eo =1.1 eV

=1.1*1.602*10^-19 J

=1.7622*10^-19 J

use:

E = h*c/lambda

1.762*10^-19J =(6.626*10^-34 J.s)*(3.0*10^8 m/s)/lambda

lambda = 1.128*10^-6 m

Answer: 1.13*10^-6 m

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