A Material Has an Energy Gap of 2

question 38

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

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