Bragg diffraction

Chemistry Level pending

A diffraction pattern of aluminum is obtained by using X-rays with wavelength $\lambda = 0.709 \times 10^{-10}$ m. The third-order Bragg diffraction from the parallel faces of the cubic unit cells is observed at the angle $2\theta=20.2^{\circ}.$ What is the lattice parameter $d?$

4.04 \times 10^{-10} \text{ m}

2.02 \times 10^{-10} \text{ m}

6.06 \times 10^{-9} \text{ m}

6.06 \times 10^{-10} \text{ m}

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Bragg diffraction

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