Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
In a semiconductor, if the energy gap E_g between the conduction band and the valence band is 1.1 eV, what is the minimum energy (in eV) required for an electron to move from the valence band to the conduction band?
A
0.55 eV
B
1 eV
C
2 eV
D
0.75 eV
Correct Answer
Option B
Detailed Explanation
The minimum energy required to excite an electron from the valence band to the conduction band is equal to the energy gap E_g. Thus, for an energy gap of 1.1 eV, the required energy is 1.1 eV.
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