Question

With what velocity should an alpha particles travel towards the nucleus of a Cu atom so as to arrive at a distance of 10^-12m

Answer 1

Answer:

The velocity at which the α−particle travel towards the nucleus of a Cu atom to reach at a distance of 10−13m is 6.3×106msec−1. From the nucleus to reach the distance r, the kinetic energy of the alpha particle must be equal to the potential energy of interaction of the alpha particle with the nucleus of copper.