PHYSICS · Subjective · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
An alpha particle (mass =6.6×10−27 kg, charge =+2e ) is directed towards a nucleus of electric charge +79e . The radius of this nucleus is 7.0×10−15 m. Initially the alpha particle is very far from the nucleus. What should the initial speed of the alpha particle be so that it just stops on the nuclear surface?