In an X-ray diffraction experiment using X-rays of ? = 0.500 × 10?10 m, a first-order maximum occurred at 5.00°. Find the crystal plane spacing.
A. 2.87 × 10?10 m
B. 1.36 × 10?10 m
C. 6.24 × 10?9 m
D. 1.93 × 10?9 m
E. 5.74 × 10?9 m
Answer: A
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