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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Quizplus · Accepted Answer

Using Bragg's Law, nλ = 2d sin θ, for first order (n=1), d = λ / (2 sin θ). Substituting λ = 1.4 × 10^-10 m and θ = 30°, we get d = 0.14 nm.

If an X-Ray Beam of Wavelength 1