Q. As $n$-type and a $p$-type silicon semiconductor can be obtained by doing pure silicon with

A) Sodium and magnesium
B) Phosphorus and boron respectively
C) Boron and phosphorus respectively
D) Indium and sodium respectively
Explanation

(b) Phosphorous is pentavalent and Boron is trivalent material.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.