If an X-Ray Beam of Wavelength 1

question 22

Multiple Choice

If an x-ray beam of wavelength 1.4 × 10^-10 m makes an angle of 30° with a set of planes in a crystal causing first order constructive interference, what is the plane spacing?

• A) 0.28 nm
• B) 0.070 nm
• C) 0.32 nm
• D) 0.16 nm
• E) 0.14 nm

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