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Grade: 11
        
Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be
formed if a small amount of indium(In) impurity were added to pure selenium(Se)?
(A) substitutional type (B) p-type
(C) n-type (D) None of these
3 years ago

Answers : (1)

Ashutosh Sharma
askIITians Faculty
181 Points
							n-type
as it is forming a pentavalent impurity as indium belong to 13thgroup and selenium belongs to 16thgroup in periodic table.
3 years ago
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