The Lattice Spacing of the Principal Bragg Planes in Sodium $0.282 \mathrm {~nm}$

question 105

Multiple Choice

The lattice spacing of the principal Bragg planes in sodium chloride is $0.282 \mathrm {~nm}$ . For what wavelength of x-rays will the first order reflected beam diffract at $55 ^ { \circ }$ with respect to the normal to the crystal planes?

• A) \(0.662 \mathrm {~nm}\)
• B) \(0.150 \mathrm {~nm}\)
• C) \(0.530 \mathrm {~nm}\)
• D) \(0.462 \mathrm {~nm}\)
• E) \(0.323 \mathrm {~nm}\)

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