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Solution


Q.

A p-type extrinsic semiconductor is obtained when Germanium is doped with            [2023]
1 Antimony    
2 Phosphorous  
3 Arsenic     
4 Boron  

Ans.

(4)

A p-type semiconductor is doped with trivalent impurity. This results in formation of an extra hole or electron deficit. From the given options, boron is a trivalent impurity.