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Q. |
Which of the following shapes are formed by the diffracted radiation in the powder method? |
A. | circular |
B. | spherical |
C. | conical |
D. | cubical |
Answer» C. conical | |
Explanation: for any set of lattice phases, the diffracted radiation forms the surface of a cone. the only requirement for diffraction is that the planes be at angle Θ to the incident beam, no restriction is placed on the angular orientation of the plane about the axis of the incident beam. |
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