Question: Consider a 2D face-centered cubic lattice with 0.15 nm atom spacings in the x and y directions, probed with a SEM having an energy

Consider a 2D face-centered cubic lattice with 0.15 nm atom spacings in the x and y directions, probed with a SEM having an energy 30 kV. Sketch the diffraction pattern for the lowest order that will be produced on a screen 0.5 m away. Hint: there will be 3 spots plus the un-diffracted spot.

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