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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 39

  • question_answer
    Which of the following does not represent radius of the atom correctly?
    (i) Simple cubic cell: \[Radius=\frac{a}{2}\]
    (ii) Face centred cubic cell: \[Radius=\frac{a}{3\sqrt{3}}\]
    (iii) Body centred cubic cell: \[Radius=\frac{\sqrt{3}}{4}a\]

    A) (i)                    

    B)        (iii)

    C) (ii)                    

    D)        (i) and (ii)

    Correct Answer: C

    Solution :

    For fcc, radius of the atom \[=\,\,\frac{a}{2\sqrt{2}}\].


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