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