Carbon, silicon and germanium have four valence electrons each. These are characterized by valence and conduction bands separated by energy band gap respectively equal to 
and 
. Which of the following statements is true? [2005]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Carbon is insulator and hence the value of energy band gap is maximum for it. Of the other two semiconductors, the value of energy band gap for germanium is lesser.
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