MCQ
The process of adding impurities to the pure semiconductor is called
- ADrouping
- BDrooping
- ✓Doping
- DNone of these
Hence, The process of adding impurities to semiconductors is called doping.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Reason : The drift velocity of electrons in a metallic wire is very high.

($A$) The refractive index of the lens is $2.5$
($B$) The radius of curvature of the convex surface is $45 \mathrm{~cm}$
($C$) The faint image is erect and real
($D$) The focal length of the lens is $20 \mathrm{~cm}$