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Grade upto college level IIT JEE Entrance Exam

Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by (Eg)c, (Eg)Si and (Eg)Ge respectively. Which one of the following relationships is true in their case?
(a) (Eg)c > (Eg)Si
(b) (E_g )_C< (E_g )_Si
(c) (Eg)c = (Eg)Si
(d) (Eg)c < (Eg)Ge

Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Aditi Chauhan
12 Years ago

        (a)

Due to strong electro negativity of carbon.

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