Multiple Choice
An energy gap between the valence band and the conduction band is 3.5 eV in a particular solid. The maximum wavelength of a photon that can excite a transition from the top of the valence band to the conduction band is
A) 68 nm.
B) 125 nm.
C) 255 nm.
D) 354 nm.
Correct Answer:

Verified
Correct Answer:
Verified
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