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Abdul.119
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Homework Statement
In a diffraction experiment in which electrons of kinetic energy 110 eV are scattered from a crystal, a first maximum in the intensity of the scattered electrons occurs at an angle θ=10.7
a) How many peaks will there be in the interference pattern?
b) What is the spacing between the atom planes?
Homework Equations
2d sinθ = nλ
λ = h/p = h/√(2m KE)
The Attempt at a Solution
From the kinetic energy of the electron I found the wavelength to be 1.17*10^-10 m , then I don't understand how to use it in that equation, I believe n is the number of peaks, and d is the spacing, so how would I solve this equation while two variables are missing?