Jee Main
Atoms And Nuclei
JEE Main 2026 (Online) 21st January Morning Shift
MCQ+4 / -12026
If an alpha particle with energy 7.7 MeV is bombarded on a thin gold foil, the closest distance from nucleus it can reach is $\_\_\_\_$ m. (Atomic number of gold $=79$ and $\frac{1}{4 \pi \epsilon_{\mathrm{o}}}=9 \times 10^9$ in SI units)