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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Mock Test - Solid State

  • question_answer
    In Bragg's X-ray diffraction studies. 100 pm X-ray second order diffraction at glancing angle of\[30{}^\circ \]. Its interplanar spacing will be

    A) 200 pm

    B) 150 pm.

    C) 100 pm

    D) 144 pm

    Correct Answer: A

    Solution :

    [a] \[n\lambda =2d\sin \theta \] \[2\times 100=2\times d\times 1/2\]           (\[\sin 30{}^\circ =1/2\]) \[d=200pm\]


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