(a) For what kinetic energy of a neutron will the associated de-Broglie wavelength be 1.40 * 10^-10 m? (b) Also, find the de-Broglie wavelength of a neutron, in thermal equilibrium with matter, (a) For what kinetic energy of a neutron will the associated de-Broglie wavelength be 1.40 * 10^-10 m? (b) Also find the de-Broglie [...]