MCQ
Bragg's law for $X$-rays is
  • A
    $d \sin \theta=2 n \lambda$
  • $2 d \sin \theta=n \lambda$
  • C
    $n \sin \theta=2 \lambda d$
  • D
    None of these

Answer

Correct option: B.
$2 d \sin \theta=n \lambda$

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