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Deliberately adding an impurity to a semiconductor is called:
ADoping
BEtching
CSoldering
DAnnealing
Answer & Solution
Correct answer: A. Doping
1. The added atoms are called dopants.
2. The act of adding them has a name.
3. It is doping.
_Source: NCERT Class 12 Physics Part II, Chapter 14, Semiconductor Electronics._
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