Question

A nucleus has a radius of 4 Fermis. Use the uncertainty principle to estimate the kinetic energy for a neutron localized inside the nucleus. Do the same for an electron. 

Answer 1

Answer

Uncertainty of kinetic energy is

$=\frac{\hbar}{2\pi R}\\=\frac{6.626*10^{-34}}{2*3.14*4*10^{-15}}\\=1.06*10^{-19}J$