Given below are two statements:
Statement (I) : Adding of chemical impurity to a pure semiconductor is called doping.
Statement (II) : A semiconductor in an extremely pure form is known as extrinsic semiconductor. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer & explanation
Correct answer: option 2
Statement I is not entirely accurate, as doping involves adding a small amount of impurity to a semiconductor to alter its electrical properties, not just adding any chemical impurity.
Statement II is also incorrect, as a semiconductor can be doped with impurities to create extrinsic semiconductors. A semiconductor in its pure form is known as an intrinsic semiconductor.
Thus, Both Statement I and Statement II are false is correct.