Which of the following statements is not correct?

  • A
    Packing efficiency of $hcp$ and $ccp$ lattices are identical
  • B
    Packing efficiency of $fcc$ lattice $>$ Packing efficiency of $ccp$ lattice
  • C
    Packing efficiency of $fcc$ lattice $=$ Packing efficiency of $ccp$ lattice
  • D
    Packing efficiency of $hcp$ lattice $=$ Packing efficiency of $fcc$ lattice

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In a face-centred cubic $(FCC)$ lattice,where are the tetrahedral voids located?

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The volume occupied by the atoms in a unit cell of hexagonal close packing $(HCP)$ or cubic close packing $(CCP)$ is equal to:

Explain close packing in one dimension. Explain close packing in two dimensions.

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Find the number of tetrahedral voids per atom in a crystal lattice.

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