Answer to Question #261917 in Physics for Nitish Kumar

Question #261917

Calculate the wavelength of thermal neutrons at 20 degree Celsius

Expert's answer

Begin with the energy:

"E=\\frac 32 kT,\\\\\\space\\\\\n\\lambda=\\frac h{\\sqrt{2mE}}=\\frac h{\\sqrt{3mkT}}=147\\text{ pm}."

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