If the Interplanar Spacing of NaCl Is 2

question 28

Multiple Choice

If the interplanar spacing of NaCl is 2.814 × 10−10 m, what is the predicted angle at which X-rays of wavelength 0.140 nm will be diffracted in a first-order maximum?

• A)31.3°
• B)7.20°
• C)20.5°
• D)14.4°
• E)29.8°

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