2. Sample Papers
  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-24

  • question_answer
    The edge lengths of the unit cells in terms of the radius of spheres constituting fee ,bcc and simple cubic unit cell are respectively -

    A)  \[2r,\frac{4r}{\sqrt{3}},2\sqrt{2}\]         

    B)  \[\frac{4r}{\sqrt{3}},2\sqrt{2},2r\]

    C)  \[2r,2\sqrt{2}r,\frac{4r}{\sqrt{3}}\]        

    D)  \[2\sqrt{2r},\frac{4r}{\sqrt{3}},2r\]

    Correct Answer: D

    Solution :

    \[scc:\,\,a=2r;\,\,bcc:\,\sqrt{3}a\,=4r:\,fcc:\,\sqrt{2}\,a=4r\]


You need to login to perform this action.
You will be redirected in 3 sec spinner