NEET Chemistry The Solid State Questions Solved

The first order reflection (n = 1) from a crystal of the X-ray from a copper anode tube (λ=0.154nm) occurs at an angle of 16.3°. What is the distance between the set of planes causing the diffraction.

(1) 0.374nm

(2) 0.561nm

(3) 0.274nm 

(4) 0.395nm

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