What is the
de-Broglie wavelength of an electron with kinetic energy of 120 eV?

What is the de Broglie wavelength

What is the momentum and De Broglie wavelength of an electron with kinetic energy of 120 eV.

Obtain the de-Broglie wavelength of a neutron of kinetic energy 150 eV. As you have seen in Q.NO.11.31, an electron beam of this energy is suitable for crystal diffraction experiments. Would a neutron beam of the same energy be equally suitable? Explain (m_n=1.675xx10^-27) .