InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Draw a schematic arrangement of the Geiger Marsden experiment. How did the scattering of `alpha` particles by a thin foil of gold provide an important way to determine an upper limit on the size of nucleus? Explain briefly. |
|
Answer» Both the nucleus and an alpha particle are positively charged. When an alpha particle approcaches a nucleus, it is repelled, the velocity and hence KE of `alpha` particle goes on decreasing. in turn, potential energy of the system goes on increasing. At a cartain distance, the entire KE of `alpha` particlel is converted into P.E. the alpha particle can no longer go closer to the nucleus. This distance of closet approach of `alpha` particle gives us the approxiate size of the nucleus. |
|