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The second order Bragg’s diffraction of X – rays with

λ = 1 Å from a set of parallel planes in a metal occurs at an angle of 60º  . The distance between the scattering planes in the crystal is

a. 0.575 Å

b. 1.00 Å

c. 2.00Å

d. 1.15  Å

Ans. d

(7)

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