Multiple Choice
A material has an energy gap of 2.5 eV. What energy photons in the visible range (1.8 eV to 3.6 eV) would excite electrons into the conduction band?
A) 1.8 eV
B) 2.5 eV
C) 1.8 eV up to 2.5 eV
D) 2.5 eV up to 3.6 eV
E) 1.5 eV
Correct Answer:

Verified
Correct Answer:
Verified
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