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If same type of atoms are packed in hexagonal close packing and cubic close packing separately, then
(a)Density of hep will be greater than .
(b)Density of hep will be smaller than
(c)Density of hep will be equal to
(d)Density of hep and will depend upon the temperature of the system

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Important Questions on Solid State
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The radius of an atom is If it crystallizes in a face-centered cubic lattice, the length of the edge of the unit cell is:

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A crystalline solid has -ions at the corners and face centres where as ions are at the body centre and edge centres of the unit cell. The sim ple formula of the compound will be

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Schottky defect in crystals is observed when:

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Silicon doped with Arsenic is
