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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Mathematical analysis of cubic system and Bragg's equation

  • question_answer
    In face centred cubic unit cell edge length is        [DPMT 2005]

    A)                 \[\frac{4}{\sqrt{3}}r\]    

    B)                 \[\frac{4}{\sqrt{2}}r\]

    C)                 \[2r\]    

    D)                 \[\frac{\sqrt{3}}{2}r\]

    Correct Answer: B

    Solution :

               In FCC                    \[4r=\sqrt{2}a\]                    \[a=\frac{4r}{\sqrt{2}}\]


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