RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key

Doping is the process of adding some impurity atoms in a pure or (intrinsic) semiconductor so as to increase the conductivity of a semiconductor.

Non-cooperation Movement was abruptly called off on 11 February 1922 by Gandhi following the Chauri Chaura incident in the Gorakhpur district of UP resulting in the deaths of about 22 policemen and 3 civilians.