The atomic planes in a graphite crystal are separated by 335 pm. At what angle would you find the first-order (n = 1) diffraction of 0.154 nm X-rays from a graphite crystal A) 0.232^$\circ$ B) 2.63^$\circ$ C) 13.3^$\circ$ D) 27.4^$\circ$ E) 66.8^$\circ$

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Quizplus · Accepted Answer

Using Bragg's Law, nλ = 2d sin θ, where n = 1, λ = 0.154 nm, and d = 335 pm = 0.335 nm, solving for θ gives approximately 13.3°.

The Atomic Planes in a Graphite Crystal Are Separated by 335