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X-Rays Are Directed Toward a Crystal ∘\circ for Certain Crystallographic Planes

Question 19

Multiple Choice

X-rays are directed toward a crystal.The first order diffraction peak appears at 11 ∘\circ for certain crystallographic planes.The separation between the planes is 0.512 nm.What is the wavelength of the x-rays?


A) 0.312 nm.
B) 0.216 nm.
C) 0.183 nm.
D) 0.195 nm.
E) 0.140 nm

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