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If the angle of incidence of X-ray of wavelength 3 Å which produces a second order diffracted beam from the (100) plane in a simple cubic lattice with interlayer spacing a = 6 Å is 30°, the angle of incidence that produce a first order diffracted beam from the (200) planes is

a. 15°

b. 45°

c. 30°

d. 60°

Ans. c

(18)

5/5 - (1 vote)

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