In: Physics
In this example we will apply the concept of the de Broglie wavelength to neutrons. Find the speed and kinetic energy of a neutron (m=1.675×10−27kg)(m=1.675×10−27kg) that has a de Broglie wavelength λ=0.200nmλ=0.200nm, typical of atomic spacing in crystals. Compare the energy with the average kinetic energy of a gas molecule at room temperature (T=20∘C)(T=20∘C).
Find the kinetic energy of an electron with a de Broglie wavelength of 0.163 nmnm .