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AMU Medical AMU Solved Paper-2012

  • question_answer
    A metal crystallizes into a lattice containing a sequence of layers of atoms of ABABAB... What percentage by volume of this lattice has empty space?

    A)  74                         

    B)  26   

    C)  20                         

    D)  16

    Correct Answer: B

    Solution :

                     In ABAB ...... pattern (hexagonal close packing, hcp) 74% space in the crystal is filled. Empty space = 100 - 74 = 26%.


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