- #1
soul
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Homework Statement
Consider a crystal with planar spacing 3.2 A0. What order of magnitude of energies would
one need for (a) electrons, (b) helium nuclei (mass = 4*proton mass) to observe up to three
interference maxima?
Homework Equations
2d.sinx = n.lambda (I)
lambda = h / p (II)
E = (1/2)mv22
The Attempt at a Solution
To solve this question, I thought I must first find the wavelength and can use other equetions that I wrote above. Actually, I don't know how I can use them but since in the question, mass is important, I thought an equation with mass can work.